Regd. Office:
111, South Block A, Fortune Estate,
Aakashwani, Hadapsar, Pune – 411028, INDIA.
Email: lotus.envitech@gmail.com
Website: www.lotusenvitech.com
Phone: +91 2026995565, +91 9561325565
Bangalore:
Email: lotus.bangalore1@gmail.com
Ethiopia (Addis Ababa):
Email: lotus.ethiopia@gmail.com
Uganda (Kampala):
Email: babasaheb.lotus@gmail.com
About Company
 Lotus Environment Technology Private Limited (LETPL) is specialized
company in the area of Water ,Waste Water & Solid Waste Management.
 We are involved in design, erect, install & commission STPs , ETPs &
WTPs (conventional & RO) projects.
 We also do Troubleshooting, Commissioning, Operation, and Maintenance
of STPs & ETPs using self developed Bioculture (Lotus Biotechnology).
 We have already commissioned and are operating plants from 50 KLD to
110 MLD using Lotus Biotechnology.
Water Treatment
 Pretreatment Plants
 Filtration Plants (Sand & Carbon)
 Ultrafiltration/Microfiltration Plants
 Reverse Osmosis Plants
 Desalination Plants
 Water Softening Plants
 Demineralization Plants
 Haemodialysis Water Plants
 Boiler Water Treatment Plants
 Conventional Water Treatment Schemes for Villages & Panchayats
(Small Towns).
Sewage Treatment Plants (STPs)
 Lotopac STP
 Lotus LCST Process(Low Strength)
 Packaged STP
 MBBR or FAB STP
 Noiseless, Odorless & Underground STP (RCC & FRP)
 SBR (Sequencing Batch Reactor) STP
 MBR (Membrane Bioreactor) STP
 Anaerobic Filter STP
 UASB Reactor STP
Effluent Treatment Plants (ETPs)
 Lotopac & Packaged ETP
 Lotus LCST Process(High Strength)
 Slaughter House (Abattoir) & Poultry ETP
 Sugar Mill ETP
 Food Processing ETP
 Dairy & Milk Processing ETP
 Distillery ETP
 Beverages & cold drinks ETP
 Pharmaceuticals ETP
 Effluent Specific Treatment
Lotus LCST Process
“Lotus LCST (Low cost Sewage Treatment)” a new technology
introduced by Lotus Environment Technology Pvt Ltd (LETPL) considering
less capital investment, less power requirement, low maintenance, less
manpower requirement, low operating cost and most important is very good
outlet quality of treated sewage.
Lotus LCST Process is combination of pretreatment, biologically
enhanced primary treatment and Biological Treatment (UASB) followed by
degassing mechanism.
This process is highly suitable for low strength
wastewater especially domestic sewage. Lotus Biotechnology is main
constituent responsible for degradation of organic matter (BOD & COD)
Lotus LCST Process Type
 Lotus LCST Process “Rural”
 Lotus LCST Process “Urban/Municipal”
Essential Components of Lotus LCST Process
(Rural)
1) Pretreatment.
Screening
Grit, Oil & Grease removal
Equalization
2) Biologically Enhanced Primary Treatment.
Primary Tube Settling Tank (using Lotus Biotechnology)
3) Secondary (Biological) Treatment .
Root Zone Technology
4) Sludge Treatment.
Sludge Holding Tank, Sludge Dewatering Systems, Sludge Drying Beds
Process Flow Diagram Lotus LCST Process (Rural)
Equalization Tank
with Pretreatment
Inlet
Sewage
Primary Tube
Settling Clarifier
Lotus
Biotechnology
Sludge Drying
Beds
Treated
Sewage
to
Disposal
Treated
Water Tank
75 to 80%
reduction
20 to 25%
reduction
Root Zone Bed
Pretreatment
1) Screening:
Removal of floatables like clothes pieces, plastic bags,
pouches etc using manual or mechanically raked screens.
2) Grit, Oil & Grease removal:
Removal of grit, sand, debris, fat, oil & grease using density
differences of materials. FOG removed by skimmers & grit
collected at bottom.
3) Equalization:
Equalizes sewage flow as well as Physico-chemical &
biological parameters like pH, BOD & COD.
Biological Enhanced Primary Treatment
Biologically Enhanced Primary Tube Settling Tank.
Removal of BOD, COD & TSS using Lotus Biotechnology capable
of removing 75 to 80% organic matter (BOD, TSS & COD)
Raw Sewage from
Equalization Tank
Primary Clarified
Water to Root
Zone Bed
Lotus
Biotechnology
75 to 80 % reduction
of organic load
Primary Sludge to
Sludge Handling
System
Secondary (Biological) Treatment
Root Zone Technology
Root Zone Treatment System are planted filter-beds consisting of
sand/gravel/soil. It uses a natural way to effectively treat sewage. It
removes 20 - 25% of organic load (BOD & COD).
phytoremediation
Phragmites australis
Raw & Treated Sewage Quality
Sr.
Parameters
No.
Unit
Raw
After
Lotus
LCST
Process
-
6.5 - 8.5
6.9 - 7.2
6.9 - 7.2
After
Tertiary
1
pH
2
Biochemical Oxygen Demand (BOD)
mg/l
250
≤ 30
≤ 20
3
Chemical Oxygen Demand (COD)
mg/l
400
≤ 50
≤ 30
4
Total Suspended Solids (TSS)
mg/l
200
≤ 25
≤ 10
5
Oil & Grease
mg/l
15
≤5
≤2
Essential Components of Lotus LCST Process
(Urban/ Municipal)
1) Pretreatment.
Screening
Grit, Oil & Grease removal
Equalization
2) Biologically Enhanced Primary Treatment.
Primary Tube Settling Tank (using Lotus Biotechnology)
3) Secondary (Biological) Treatment .
Up flow Anaerobic Sludge Blanket Reactor (UASB) with Polishing pond
4) Sludge Treatment.
Sludge Holding Tank, Sludge Dewatering Systems, Sludge Drying Beds (for
Urban) or Centrifuge (for Municipal).
Process Flow Diagram Lotus LCST Process
(Urban/Municipal)
Biogas
for use
Inlet
Sewage
Equalization
Tank with
Pretreatment
UASB
BEPT
Pump
Lotus
Biotechnology
75 to 80%
reduction
Pump
Sludge Drying
Beds
Buffer Tank
20 to 25%
reduction
Degassing
Mechanism
Outlet
Polishing Pond
Pretreatment
1) Screening:
Removal of floatables like clothes pieces, plastic bags,
pouches etc using manual or mechanically raked screens.
2) Grit, Oil & Grease removal:
Removal of grit, sand, debris, fat, oil & grease using density
differences of materials. FOG removed by skimmers & grit
collected at bottom.
3) Equalization:
Equalizes sewage flow as well as Physico-chemical &
biological parameters like pH, BOD & COD.
Biologically Enhanced Primary Treatment
Biologically Enhanced Primary Tube Settling Tank.
Removal of BOD, COD & TSS using Lotus Biotechnology capable
of removing 75 to 80% organic matter (BOD, TSS & COD) in PST.
Raw Sewage from
Equalization
Tank
Primary Clarified
Water to Root
Zone Bed
Lotus
Biotechnology
75 to 80 % reduction
of organic load
Primary Sludge to
Sludge Handling
System
Secondary (Biological) Treatment
UASB (Upflow Anaerobic Sludge Blanket Reactor) with Degassing
mechanism
UASB uses an anaerobic process whilst forming a blanket of granular
sludge which suspends in the tank. Wastewater flows upwards through
the
blanket
and
is
processed
(degraded)
by
the
anaerobic
microorganism. It reduces organic load by 20 - 25%.
Degassing Mechanism is removes dissolved gases present in the UASB
outlet. It also increases dissolved oxygen in the UASB treated water.
Raw & Treated Sewage Quality
Sr.
Parameters
No.
After PST After
& UASB Tertiary
PCB
Norms
Unit
Raw
-
6.5 - 8.5
6.9 - 7.2
6.9 - 7.2
6.5 - 9
1
pH
2
Biochemical Oxygen
Demand (BOD)
mg/l
250
≤ 25
≤ 20
≤ 30
3
Chemical Oxygen
Demand (COD)
mg/l
400
≤ 75
≤ 30
≤ 100
4
Total Suspended
Solids (TSS)
mg/l
200
≤ 30
≤ 10
≤ 100
5
Oil & Grease
mg/l
15
≤2
≤2
≤ 10
Area and Power Requirement
Plant Capacity
Area Required for the
Plant m2
Total Working
Electrical
Load (kWh)
1 MLD
217
177
5 MLD
850
720
10 MLD
1700
1800
Merits of Lotus LCST Process
(Rural, Urban and Municipal)
1.
Minimum installation cost & time.
2.
Minimum electrical power requirement (only two pumps required).
3.
Minimum maintenance.
4.
Minimum operation cost (less manpower, Chemical, Lubrication cost).
5.
Very good outlet quality.
6.
Almost zero noise.
7.
Removal of nitrogen & phosphorus poor (20 - 30%) in cold climate &
better (50 – 60%) in tropics.
Some Testimonials
Pimpri Chinchwad Municipal Corporation
Rahimatpur Municipal Council
Greenland Agrotech Pvt Ltd
Thank You