Record 1 of 3 TITLE Quantitative theory in soil productivity and environmental pollution / a discussion organized and edited by D.J. Greenwood, P.H. Nye and A. Walker. PUBLISHER London : Royal Society, 1990. SHELF NO 631.42QUA. Record 2 of 3 TITLE and models Reactive transport in soil and groundwater : processes / Gunnar Nützmann, Paolo Viotti, Per Aagaard (editors). PUBLISHER SHELF NO Berlin : Springer, 2005. 551.49015118 REA. Record 3 of 3 AUTHOR TITLE Thomas PUBLISHER SHELF NO Pierzynski, Gary M. Soils and environmental quality / Gary M. Pierzynski, J. Sims, George F. Vance. Boca Raton : Lewis Publishers, c1994. 628.55PIE. Record 1 of 18 Author(s): Isoyama, M; Wada, SI Title: Soil chemistry effect on feasibility of Cr-decontamination by acid-washing Source: JOURNAL OF THE FACULTY OF AGRICULTURE KYUSHU UNIVERSITY, 51 (1): 33-36 FEB 2006 Keywords Plus: OXIDATION; CHROMIUM; ADSORPTION; EXTRACTION; CHROMATE Abstract: Soil washing with simple acid has been proven to be effective for removal of cationic heavy metals from contaminated soils. Since the adsorption of anionic heavy metals is enhanced in acidic medium, the efficiency of acid-washing may not be guaranteed for soils that are doubly contaminated with cationic and anionic heavy metals. To evaluate the efficiency of acid-washing, nine soils were artificially contaminated with chromate and chromium was extracted with hydrochloric acid of 0.5 mmol L-1 to 1 mol L-1. A part of spiked chromate was reduced to trivalent chromium and the remaining chromate ions were almost quantitatively extracted with the hydrochloric acid. However, increasing hydrochloric acid concentration was not effective for the extraction. Possible mechanisms underlying the observed low efficiency were considered to be the enhanced reduction in acidic solution, complexation by humic substance and adsorption via cation exchange reactions. We concluded that acid-washing satisfactorily works for chromate removal in nonallophanic soils but inefficient for removal of trivalent chromium particularly from soils having high effective cation exchange capacity and organic matter content. ISSN: 0023-6152 Record 2 of 18 Author(s): Holden, PA; Fierer, N Title: Microbial processes in the vadose zone Source: VADOSE ZONE JOURNAL, 4 (1): 1-21 FEB 2005 Keywords Plus: SHALLOW SUBSURFACE SEDIMENTS; SOUTHERN HIGHPLAINS; SOIL ORGANIC-MATTER; UNSATURATED ZONE; VERTICALDISTRIBUTION; COMMUNITY STRUCTURE; POROUS-MEDIA; NITROGEN MINERALIZATION; CO2 PRODUCTION; FOREST SOIL Abstract: Surface soils and their microbiology have been studied for decades. However, subsurface soil, more broadly referred to as the vadose zone, is of increasing interest to microbiologists. The vadose zone, extending from the terrestrial surface to the groundwater table, is in microbes of many types. This review summarizes what is known the abundance and diversity of microbes in the vadose zone and the environmental factors that influence vadose zone microbes and microbial processes. We discuss the roles of vadose zone microbes in nutrient cycling as well as their importance in pollutant remediation. We address a number of fundamental questions in vadose zone microbial ecology, including: What do we need to learn about vadose zone microbes to improve our ability to predict the fates of pollutants? How different are microbial communities and microbial activities in the terrestrial subsurface compared with surface soil? Numerous questions and arguments justify "deepening" soil microbiology's spatial context to include the whole unsaturated subsurface. ISSN: 1539-1663 Record 3 of 18 Author(s): Sachleben, JR; Chefetz, B; Deshmukh, A; Hatcher, PG Title: Solid-state NMR characterization of pyrene - Cuticular matter interactions Source: ENVIRONMENTAL SCIENCE & TECHNOLOGY, 38 (16): 4369-4376 AUG 15 2004 Keywords Plus: SOIL ORGANIC-MATTER; NUCLEAR-MAGNETICRESONANCE; DISTRIBUTED REACTIVITY MODEL; PROTON-ENHANCED NMR; MAGIC-ANGLE; MACROMOLECULAR CHARACTERISTICS; CROSSPOLARIZATION; HUMIC SUBSTANCES; ROTATING SOLIDS; PLANT POLYESTER Abstract: One- and two-dimensional nuclear magnetic resonance (NMR) experiments were performed on Agave amen. cana cutan and tomato cutin to examine the interactions between a hydrophobic pollutant, pyrene, and cuticular material. Variable-temperature NMR experiments show that cutan, an acid- and base-resistant cuticular biopolymer, undergoes the characteristic melting behavior of "polyethylenelike" crystallites, while the tomato cutin does not. The melting point of A. americana cutan was found to be approximately 360 K, which is consistent with the thickness of the polyethylene crystallites of 30-40 methylene units. Sorption models predict that the sorption behavior of hydrophobic pollutants should depend on the phase of the cuticular material. C-13 NMR experiments on labeled pyrene were performed. The C13 T, of pyrene decreases significantly from that of crystalline pyrene upon sorption to both tomato fruit cutin and A. americana cutan, indicating that the pyrene is mobile upon sorption. Magic angle spinning experiments at low spinning frequencies (2-4 kHz) provided the chemical shift anisotropy (CSA) parameters delta, the anisotropy, and 17, the asymmetry parameter, for crystalline and sorbed pyrene. For crystalline pyrene, two types of crystallographically distinctive pyrenes were observed. The first had delta = -97.4 +/- 0.5 ppm and eta = 0.934 +/- 0.006, while the second had delta = 98.1 +/- 0.5 ppm and eta = 0.823 +/- 0.008. After sorption to cutan, these CSA parameters were found to be delta = -78.9 +/- 5.3 ppm and eta < 0.70 independent of the length of time since completion of the sorption procedure. In tomato cutin, the CSA parameters were found to be dependent upon the time since completion of the sorption procedure. One and one-half months after sorption, delta was found to have a value of -30.4 ppm < delta <0.0 ppm and eta was undeterminable, while after 22 months these values become delta = -80.0 +/- 3.3 ppm and eta < 0.42. These changes in the CSA parameters demonstrate that upon sorption of pyrene to cutan, the pyrene undergoes anisotropic motion, while in cutin pyrene initially can tumble isotropically, but after 22 months this motion also becomes anisotropic. 2D heteronuclear correlation experiments indicate that pyrene is in close proximity to aliphatic cuticular materials after sorption. This work is directly relevant toward understanding the physical and chemical mechanisms of pollutant sorption to soil organic matter and, thus, help develop improved sorption models and pollution remediation techniques. ISSN: 0013-936X Record 4 of 18 Author(s): Wan, MW; Petrisor, IG; Lai, HT; Kim, D; Yen, TF Title: Copper adsorption through chitosan immobilized on sand to demonstrate the feasibility for in situ soil decontamination Source: CARBOHYDRATE POLYMERS, 55 (3): 249-254 FEB 25 2004 Author Keywords: copper adsorption; in situ soil decontamination; chitosan; chelation; biopolymers Keywords Plus: METAL-IONS; EQUILIBRIUM; SORPTION; CHROMIUM; KINETICS; REMOVAL; CU(II); LEAD Abstract: The contamination of soils and waters by metals all over the world continues to present a serious danger to the environment and human health. The development of innovative metal clean-up technologies remains a challenge as current procedures have many limitations, such as being expensive, disruptive, and only efficient for certain concentrations. With high molecular weight and repetitive functional groups, biopolymers provide excellent chelating material for metals. Chitosan is a well-known and efficient metal chelator, but its practical use is limited due to the relatively high costs of constructing clean-up devices (filters) from chitosan alone. In the current study we attempt to find a more cost-effective solution by investigating a new adsorbent material based on chitosan immobilized on sand, namely, chitosan-coated sand (5% chitosan content). This new material was studied for its copper adsorption capacity at contact times of 2, 4, and 6 h and the equilibrium result was compared with copper adsorption capacities of chitosan and sand alone. Hopefully this concept will lead to an application as a large-scale permeable reactive barrier. Copper recovery from an adsorbent with the possible reuse of the adsorbent material was also evaluated in leaching tests. The equilibrium isotherms for Cu adsorption on chitosan-coated sand were described by the Langmuir model. These preliminary results indicate the possibility of using chitosan-coated sand to build inexpensive large-scale barrier filters for metal removal from moving contaminated groundwater plumes. (C) 2003 Elsevier Ltd. All rights reserved. ISSN: 0144-8617 Record 5 of 18 Author(s): Boonsook, P; Luanmanee, S; Attanandana, T; Kamidouzono, A; Masunaga, T; Wakatsuki, T Title: A comparative study of permeable layer materials and aeration regime on efficiency of multi-soil-layering system for domestic wastewater treatment in Thailand Source: SOIL SCIENCE AND PLANT NUTRITION, 49 (6): 873-882 DEC 2003 Author Keywords: charcoal; multi-soil-layering system; perlite; permeable layer; zeolite Abstract: Multi-soil-layering (MSL) system was designed for purifying domestic wastewater and for treating polluted river water. MSL system is typically comprised of layers of soil mixture blocks alternating with permeable layers. The permeable layer has roles of preventing clogging and to increasing the efficiency of infiltration of wastewater through the soil mixture blocks. In this study, the comparative efficiency of five MSL systems as a function of five permeable layer materials (zeolite, zeolitized perlite, perlite, gravel, and charcoal) was investigated. The MSL systems were constructed in 15 x 50 x 100 cm boxes where the soil mixture blocks contained sandy clay soil, kenaf + corncob, and iron scraps at a ratio of 6: 1 : 1 by weight, respectively, and filled up in alternation with the permeable layer. The results indicated that all the MSL systems at loading rates of 96-346 L m(-2) d(-1) under non-aerated conditions were able to reduce the levels of COD (342-1,231 mg L-1), BOD5 (201-802 mg L-1), and soluble reactive phosphorus (SRP) (3.5-10.1 mg P L-1) at percentages of 79.0-98.1, 80.0-99.6, and 97.1-100%, respectively. The zeolite and the charcoal-based MSL systems under a 96-346 L m(-2) d(-1) loading rate effectively reduced the level of TN (41.4-65.5 mg N L-1) at percentages of 79.0-92.1 and 30.7-88.9%, respectively. In terms of prevention of clogging, the charcoal-based MSL system was the most effective, followed by the gravel and zeolite-based MSL. The apparent efficiency of pollutant removal, for zeolitized perlite, perlite, and gravelbased MSL systems was low. With an on-off aeration operation, the efficiency of the MSL systems in the reduction of the levels of COD, BOD5, and SRP (hereafter reference to as "removal") was significantly enhanced. Overall, the zeolite-based MSL system seemed to be more effective than the other MSL systems. However, if optimum aeration could be obtained, the removal efficiency of charcoal-based MSL system might be improved. Aeration at a rate of 64,000 L m(-3) d(1)(-) for I week alternating with 2 weeks of non-aeration enhanced the removal of COD, BOD5, and SRP but not that of TN. ISSN: 0038-0768 Record 6 of 18 Author(s): Abid, A; Hussain, M; Orfi, SD Title: Use of local soil for the decontamination of liquid radioactive wastes at PINSTECH Source: JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY, 251 (2): 337-339 FEB 2002 Abstract: The use of locally available mineral clay for the removal of radionuclides from the low and intermediate level liquid waste has been studied. Adsorption behavior of this naturally available inorganic adsorbent is reported. The factors such as contact time, nature of the waste, pH and adsorption capacity have been considered. These optional physico-chemical conditions suggest an effective use of this locally available adsorbent for the decontamination of the liquid radioactive waste at Pakistan Institute of Nuclear Science and Technology (PINSTECH), Islamabad. ISSN: 0236-5731 Record 7 of 18 Author(s): Barona, A; Aranguiz, I; Elias, A Title: Metal associations in soils before and after EDTA extractive decontamination: implications for the effectiveness of further cleanup procedures Source: ENVIRONMENTAL POLLUTION, 113 (1): 79-85 2001 Author Keywords: heavy metals; metal distribution; EDTA; sequential extraction; soil remediation Keywords Plus: HEAVY-METALS; CONTAMINATED SOILS; SEQUENTIAL EXTRACTION; CHELATING-AGENTS; POLLUTED SOILS; COPPER; ZINC; FRACTIONATION; LEAD; PB Abstract: The distribution of Pb, Ni and Zn in two contaminated soils was determined before and after treating the soils with an EDTA solution. After the EDTA extraction, the proportion of Pb accumulated in the acid-extractable fraction considerably increased, which was related to the greater degree of metal extraction from the other fractions. EDTA was also able to extract certain amounts of Pb, Zn and Ni from the silicate matrix, which implied that these extractable amounts were not so strongly fixed to the residual fraction as previously supposed. As a consequence, after EDTA application, metal content (especially Pb) remained more weakly adsorbed to soil components (more easily leachable), potentially favouring the application of phytoremediation technologies. The extraction recoveries (for only one application) were generally low for the three metals (33-37% for Pb, 5-11% for Ni and 14-19% for Zn), although this fact is an advantage as plants would not be able to assimilate very high mobilised contents of metals. (C) 2001 Elsevier Science Ltd. All rights reserved. ISSN: 0269-7491 Record 8 of 18 Author(s): Rosen, MJ; Li, F Title: The adsorption of gemini and conventional surfactants onto some soil solids and the removal of 2-naphthol by the soil surfaces Source: JOURNAL OF COLLOID AND INTERFACE SCIENCE, 234 (2): 418-424 FEB 15 2001 Author Keywords: gemini surfactants; adsorption; montmorillonite; sand; limestone; 2-naphthol; pollutant removal; cationic surfactants; anionic surfactants Keywords Plus: SORPTION; CATIONS; ADSOLUBILIZATION; SOLUBILIZATION Abstract: The adsorption of two cationic gemini surfactants, [CnH2n+1 N+(CH3)(2)CH2CH2](2). 2Br(-), where n=12 and 14, on limestone, sand, and clay (Namontmorillonite) from their aqueous solution in double-distilled water and the effect of this adsorption on the removal of 2-naphthol have been studied. Compared to those of conventional cationic surfactants with similar single hydrophilic and hydrophobic groups (CnH2n+1N+(CH3)(3). Br-, where n=12 and 14), the molar adsorptions of the gemini and the conventional surfactants on Na-montmorillonite are almost identical and very close to their cation exchange capacities. On sand and limestone, the molar adsorption of the cationic gemini surfactants is much larger than that of their corresponding conventional surfactants. Adsorption studies of the pollutants onto the three kinds of solids treated by either the gemini or the conventional surfactants show that the former are both more efficient and more effective at removing 2-naphthol from the aqueous phase. On all three soil solids, the addition of KBr increases the efficiency of the adsorption of both types of cationics and for most cases increases also the maximum amount adsorbed, but decreases slightly the efficiency of removal of 2-naphthol. On limestone, the anionic gemini adsorbs with one hydrophilic group oriented toward the Ca2+ sites on the surface and its second hydrophilic group oriented toward the aqueous phase. The conventional anionic surfactant forms a double layer. The gemini anionic is more efficient and more effective than the conventional anionic in the removal of 2-naphathol from the aqueous phase. Both anionic conventional and gemini surfactants have no adsorption on sand. The adsorption mechanisms for all the surfactants on the three soil solid surfaces are discussed. (C) 2001 Academic Press. ISSN: 0021-9797 Record 9 of 18 Author(s): Brown, PA; Gill, SA; Allen, SJ Title: Metal removal from wastewater using peat Source: WATER RESEARCH, 34 (16): 3907-3916 NOV 2000 Author Keywords: peat; metals; adsorption; wastewater treatment Keywords Plus: SOIL ORGANIC-MATTER; SPHAGNUM MOSS PEAT; IONEXCHANGE; HEAVY-METALS; HUMIC-ACID; IMMOBILIZED BIOMASS; ADSORPTION; KINETICS; WATER; COPPER Abstract: Peat has been investigated by several researchers as a sorbent for the capture of dissolved metals from wastestreams. Besides being plentiful and inexpensive, pear possesses several characteristics that make it an effective media for the removal of dissolved metal pollutants. The mechanism of metal ion binding to peat remains a controversial area with ion-exchange, complexation, and surface adsorption being the prevalent theories. Factors affecting adsorption include pH, loading rates, and the presence of competing metals. The optimum pH range for metals capture is generally 3.5-6.5. Although the presence of more than one metal in a solution creates competition For sorption sites and less of a particular ion may be bound, the total sorption capacity has been found to increase. Studies have also shown that metals removal is most efficient when the loading rates are low. In addition, recovery of metals and regeneration of the peat is possible using acid elution with little effect on peat's sorption capacity. The utilization of peat and other biomass materials for the treatment of wastewater containing heavy metals is gaining more attention as a simple. effective and economical means of pollution remediation. Pelleting processes can now produce a robust media for a variety of applications where traditional methods of pollutant removal would he economically or technologically difficult. (C) 2000 Elsevier Science Ltd. All rights reserved. ISSN: 0043-1354 Record 10 of 18 Author(s): Pomes, V; Fernandez, A; Costarramone, N; Grano, B; Houi, D Title: Fluorine migration in a soil bed submitted to an electric field: influence of electric potential on fluorine removal Source: COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS, 159 (2-3): 481-490 DEC 5 1999 Author Keywords: soil bed; electric field; electromigration; electrokinetic remediation Abstract: Transport phenomena in soils submitted to an electric field are the basis of a soil decontamination technique called electromigration or more generally electrokinetic remediation. An experimental study was carried out in order to determine the influence of the applied electric potential on the most important variables for the treatment: the amount of pollutant removed and the current intensity produced. Physicochemical and transport aspects of the process are taken into account in order to prove the feasibility and the efficiency of the technique to treat a fluorine contaminated soil. (C) 1999 Elsevier Science B.V. All rights reserved. ISSN: 0927-7757 Record 11 of 18 Author(s): McKenna, SA Title: Geostatistical approach for managing uncertainty in environmental remediation of contaminated soils: Case study Source: ENVIRONMENTAL & ENGINEERING GEOSCIENCE, 4 (2): 175-184 SUM 1998 Author Keywords: pollution remediation; modeling/statistics; pollution modeling; site investigations; hazardous waste (management); simulation; environmental geology Keywords Plus: GROUNDWATER CONTAMINATION; PROBABILISTIC ASSESSMENT Abstract: Variability in the spatial distribution of soil contaminants and limited (nonexhaustive) sampling create uncertainty in planned remediation activities at a site. Geostatistical simulation techniques can be applied to existing data to map the probability of exceeding a regulatory threshold (action level) across the site. This probability map can be used to devise a remediation plan based on an allowable probability of exceeding the regulatory action level that is acceptable to regulators and stakeholders. Compared with the traditional, deterministic approach to defining areas to be remediated, this probabilistic approach requires an acknowledgment of a nonzero probability of failure (failing to remove material actually exceeding the action level) that must be agreed upon by the regulators and stakeholders. Evaluation of costs for remediation alternatives and for potential regulatory failure can be combined with probability maps to provide site operators, regulators and stakeholders with cost-risk information from which key decisions can be effectively understood and negotiated. Approximately 300 samples were collected from a site in central New Mexico. These samples show concentrations of lead ranging from the 0.1 to 3,000 ppm. Initial negotiations with stakeholders and regulators resulted in two action levels being considered where each action level defined an acceptable human health risk for a residential or a industrial future land-use scenario. Probability-of-exceedence maps were created through geostatistical simulation at both action levels. Maps of areas to be remediated for several acceptable probabilities of exceedence, and the corresponding remediation costs as a function of proposed action level allowed the regulators and stakeholders to see clearly the economic consequences of their decisions. In the final decision, the regulators and stakeholders accepted a higher action level and a remediation map constructed with a five percent probability of exceedence. The cost difference between the selected action level, corresponding to an industrial future land-use scenario, and the alternative action level, corresponding to a residential future land-use scenario resulted in a projected savings in remediation costs of approximately $6.6 million. ISSN: 1078-7275 Record 12 of 18 Author(s): White, DC; Flemming, CA; Leung, KT; Macnaughton, SJ Title: In situ microbial ecology for quantitative appraisal, monitoring, and risk assessment of pollution remediation in soils, the subsurface, the rhizosphere and in biofilms Source: JOURNAL OF MICROBIOLOGICAL METHODS, 32 (2): 93-105 Sp. Iss. SI APR 1998 Author Keywords: natural attenuation; risk assessment; microbial ecology; signature biomarker analysis Keywords Plus: HYDROXY FATTY-ACIDS; GRAM-NEGATIVE BACTERIA; COMMUNITY STRUCTURE; HIGH-SOLIDS; NUTRITIONAL-STATUS; VIBRIO-CHOLERAE; DEEP SUBSURFACE; RIBOSOMAL-RNA; SEDIMENTS; BIOMASS Abstract: Numerous studies have established a relationship between soil, sediment, surface biofilm and subsurface contaminant pollution and a marked impact on the in situ microbial community in both microcosms and in the field. The impact of pollution on the in situ microbial community can now be quantitatively measured by molecular 'fingerprinting' using 'signature' biomarkers. Such molecular fingerprinting methods can replace classical microbiological techniques that relied on isolation and subsequent growth of specific microbes from the in situ microbial community. Classical methods often revealed less than 1% of the extant microbial communities. Molecular fingerprinting provides a quantitative measure of the in situ viable microbial biomass, community composition, nutritional status, relative frequency of specific functional genes, nucleic acid polymers of specific microbes, and, in some cases, the community metabolic activity can be inferred. Current research is directed at establishing correlations between contaminant disappearance, diminution in toxicity, and the return of the viable biomass, community composition, nutritional status, gene patterns of the in situ microbial community towards that of the uncontaminated soil, sediment or subsurface material with the original uncontaminated microniche environments. Compared to the current reliance on disappearance of pollutants and associated potentially toxic products for detection of effective and quantitative bioremediation, assessment of the in situ microbial community will be an additional and possibly more convincing risk assessment tool. The living community tends to accumulate and replicate toxic insults through multiple interactions within the community, which may then effect viable biomass, community composition, nutritional status, community metabolic activities, and specific nucleic acid polymer patterns. (C) 1998 Elsevier Science B.V. ISSN: 0167-7012 Record 13 of 18 Author(s): Banat, IM Title: Characterization of biosurfactants and their use in pollution removal state of the art (Review) Source: ACTA BIOTECHNOLOGICA, 15 (3): 251-267 1995 Keywords Plus: ENHANCED OIL-RECOVERY; SOPHOROSE LIPID PRODUCTION; SURFACE-ACTIVE PROPERTIES; PSEUDOMONASAERUGINOSA; MANNOSYLERYTHRITOL LIPIDS; PETROLEUMHYDROCARBONS; MICROBIAL SURFACTANTS; CANDIDA-ANTARCTICA; CONTINUOUS CULTURE; RESTING CELLS Abstract: Surface-active compounds of biological origin (biosurfactants) have only been described in the past few decades. With the advantage of biodegradability and production on renewable resources, biosurfactants have been gaining prominence and their applications are becoming wider. So far, literature contains mixed reports on the successes of the applications of biosurfactants and their economical viability. They remain compounds which are not very well understood, yet, with Several important applications. The target industries for biosurfactant use are the petroleum remediation industries and environmental conservation agencies. These industries, however, seem reluctant to use them for fear of dealing with microbes or microbial products. This includes cleaning up oil spills from the environment, remediation of metalcontaminated soils or waste streams, mobilizing heavy oil sludge and enhanced oil recovery. The importance of biosurfactants, their production, characteristics and limited successes and applications in oil pollution remediation and oil storage tank cleaning are discussed. ISSN: 0138-4988 Record 14 of 18 Author(s): GARLAND, GA; GRIST, TA; GREEN, RE Title: THE COMPOST STORY - FROM SOIL ENRICHMENT TO POLLUTION REMEDIATION Source: BIOCYCLE, 36 (10): 53-56 OCT 1995 ISSN: 0276-5055 Record 15 of 18 Author(s): ANANYEVA, ND; BLAGODATSKAYA, YV; ORLINSKIY, DB; MYAKSHINA, TN Title: EVALUATION OF THE PESTICIDE-DECONTAMINATION ABILITY OF SOILS Source: EURASIAN SOIL SCIENCE, 26 (5): 26-34 MAY 1994 Author Keywords: PESTICIDE DECONTAMINATION ABILITY OF SOILS; PESTICIDES Keywords Plus: MICROBIAL BIOMASS; DEGRADATION; CONSTANTS; GLUCOSE Abstract: A directly proportional dependence is established between the biomass of soil microorganisms, determined by the substrate-induced respiration method, and the constant of the pesticide breakdown rate in the soil. A rapid estimate of the ability of soils to decontaminate themselves according to the magnitude of the biomass of soil microorganisms is proposed. This value is inversely proportional to the period of practically complete breakdown of pesticides and may serve as a quantitative criterion for the pesticide-decontamination ability of soils. ISSN: 1064-2293 Record 16 of 18 Author(s): TADESSE, B; DONALDSON, JD; GRIMES, SM Title: CONTAMINATED AND POLLUTED LAND - A GENERAL-REVIEW OF DECONTAMINATION MANAGEMENT AND CONTROL Source: JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY, 60 (3): 227-240 JUL 1994 Author Keywords: CONTAMINATED LAND; REMEDIATION TECHNIQUE; REMEDIATION COST; POLLUTION PREVENTION Keywords Plus: SOIL Abstract: Although land pollution is a major environmental concern it is probably the least understood source of pollution in terms of both transport of toxins and remediation. This paper deals with the current situation in legislation and land pollution remediation and highlights future requirements. ISSN: 0268-2575 Record 17 of 18 Author(s): HUNG, YT; TARICSKA, JR Title: SOIL COLUMN TREATMENT OF SEPTIC-TANK EFFLUENTS AND SEPTAGES FOR ORGANIC POLLUTANT REMOVAL Source: OHIO JOURNAL OF SCIENCE, 86 (2): 48-48 APR 1986 ISSN: 0030-0950 Record 18 of 18 Author(s): DUNCAN, M; BOHN, HL; BURR, M Title: POLLUTANT REMOVAL FROM WOOD AND COAL FLUE-GASES BY SOIL TREATMENT Source: JOURNAL OF THE AIR POLLUTION CONTROL ASSOCIATION, 32 (11): 1175-1179 1982 1. The Adsorption of Gemini and Conventional Surfactants onto Some Soil Solids and the Removal of 2-Naphthol by the Soil Surfaces • ARTICLE Journal of Colloid and Interface Science, Volume 234, Issue 2, 15 February 2001, Pages 418-424 M. J. Rosen and Fang Li Abstract | Abstract + References | PDF (109 K) The adsorption of two cationic gemini surfactants, [CnH2n+1 N+(CH3)2CH2CH2]2·2Br−, where n=12 and 14, on limestone, sand, and clay (Namontmorillonite) from their aqueous solution in double-distilled water and the effect of this adsorption on the removal of 2-naphthol have been studied. Compared to those of conventional cationic surfactants with similar single hydrophilic and hydrophobic groups (CnH2n+1N+(CH3)3·Br−, where n=12 and 14), the molar adsorptions of the gemini and the conventional surfactants on Na-montmorillonite are almost identical and very close to their cation exchange capacities. On sand and limestone, the molar adsorption of the cationic gemini surfactants is much larger than that of their corresponding conventional surfactants. Adsorption studies of the pollutants onto the three kinds of solids treated by either the gemini or the conventional surfactants show that the former are both more efficient and more effective at removing 2-naphthol from the aqueous phase. On all three soil solids, the addition of KBr increases the efficiency of the adsorption of both types of cationics and for most cases increases also the maximum amount adsorbed, but decreases slightly the efficiency of removal of 2naphthol. On limestone, the anionic gemini adsorbs with one hydrophilic group oriented toward the Ca2+ sites on the surface and its second hydrophilic group oriented toward the aqueous phase. The conventional anionic surfactant forms a double layer. The gemini anionic is more efficient and more effective than the conventional anionic in the removal of 2-naphathol from the aqueous phase. Both anionic conventional and gemini surfactants have no adsorption on sand. The adsorption mechanisms for all the surfactants on the three soil solid surfaces are discussed. 2. Fluorine migration in a soil bed submitted to an electric field: influence of electric potential on fluorine removal • ARTICLE Colloids and Surfaces A: Physicochemical and Engineering Aspects, Volume 159, Issues 2-3, December 1999, Pages 481-490 V. Pomes, A. Fernandez, N. Costarramone, B. Grano and D. Houi SummaryPlus | Full Text + Links | PDF (277 K) Transport phenomena in soils submitted to an electric field are the basis of a soil decontamination technique called electromigration or more generally electrokinetic remediation. An experimental study was carried out in order to determine the influence of the applied electric potential on the most important variables for the treatment: the amount of pollutant removed and the current intensity produced. Physicochemical and transport aspects of the process are taken into account in order to prove the feasibility and the efficiency of the technique to treat a fluorine contaminated soil. TI: The compost story: from soil enrichment to pollution remediation. AU: Garland,-G-A; Grist,-T-A; Green,-R-E SO: BioCycle-. 1995; 36(10): 53-56 LA: English AB: Current application of compost as a means for pollution remediation is described. Compost as a material is described, and factors affecting its production are indicated. Technological advances in compost production and utilization are presented.. PT: Journal-article AN: 19951304525 1 TI: Integrated waste management in a zone of Northern Italy: compost production and use, and analytical control of compost, soil, and crop. AU: Guerini,-G; Maffeis,-P; Allievi,-L; Gigliotti,-C SO: Journal-of-Environmental-Science-and-Health-Part-B,-Pesticides,-Food-Contaminants,-and-AgriculturalWastes. 2006; 41(7): 1203-1219 PB: Philadelphia, USA: Taylor & Francis. URL: http://taylorandfrancis.metapress.com/link.asp?id=107844 LA: English AB: Agricultural soils of two Italian maize farms were treated for five years with industrially produced highquality compost. Cattle manure and mineral fertilizer were used for comparison. The effects of the organic and mineral fertilizer treatments were studied by analysing the compost and manure, cultured soils, and harvested material. The grain yield was also determined. Organic fertilizer application improved soil pH, CEC, content of organic matter and NPK. Soil respiration and N mineralization were higher in purely mineral-treated soil. Plant K take-up was improved, whereas grain yield was not affected. It was confirmed that organic fertilizer application, particularly compost use, maintained and increased soil fertility. The study demonstrated the feasibility of using in loco analytical facilities to follow the entire recycling process, from waste to compost production, and the use of the final product in the field.. PT: Journal-article AN: 20063205355 2 TI: Soil as a waste management system. Restraints imposed by persistent constituents. AU: Haan,-F-A-M-de; Zee,-S-E-A-T-M-van-der ED: Haan,-F-A-M-de; Visser-Reyneveld,-M-I SO: Soil-pollution-and-soil-protection. 1996; 271-289 PB: Wageningen, Netherlands: International Training Centre (PHLO), Wageningen Agricultural University. LA: English AB: Some aspects of reactions in soil of N, P and K from wastes are briefly discussed and possible adverse consequences for environmental quality are considered. Special attention is given to the presence of persistent constituents (especially heavy metals) which impose limitations to waste usage and to measures to protect the soil, groundwater and surface waters.. PT: Book-chapter IB: 9067544698 AN: 19971902926