1. LOTUS ENVIRONMENT TECHNOLOGY PVT. LTD
Regd. Office:
111, South Block A, Fortune Estate,
Aakashwani, Hadapsar, Pune – , INDIA.
Website:
Phone: ,
Bangalore:
Ethiopia (Addis Ababa):
Uganda (Kampala):

2. 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.

3. 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).

4. 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

5. 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

6. 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)

7. Lotus LCST Process Type
Lotus LCST Process “Rural”
Lotus LCST Process “Urban/Municipal”

8. 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

9. Process Flow Diagram Lotus LCST Process (Rural)
Primary Tube Settling Clarifier
Root Zone Bed
Equalization Tank with Pretreatment
Sludge Drying Beds
Treated Sewage to Disposal
Treated Water Tank
Lotus Biotechnology
Inlet Sewage
75 to 80% reduction
20 to 25% reduction

10. 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.

11. 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

12. 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 % of organic load (BOD & COD).
phytoremediation
Phragmites australis

13. Raw & Treated Sewage Quality
Sr. No.
Parameters
Unit
Raw
After Lotus LCST Process
After
Tertiary 1 pH - 2
Biochemical Oxygen Demand (BOD)
mg/l
250
≤ 30
≤ 20 3
Chemical Oxygen Demand (COD)
400
≤ 50 4
Total Suspended Solids (TSS)
200
≤ 25
≤ 10 5
Oil & Grease 15
≤ 5
≤ 2

14. 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).

15. Process Flow Diagram Lotus LCST Process (Urban/Municipal)
BEPT
Equalization Tank with Pretreatment
Sludge Drying Beds
Lotus Biotechnology
Biogas for use
UASB
Inlet Sewage
75 to 80% reduction
Pump
Pump
20 to 25% reduction
Buffer Tank
Degassing Mechanism
Outlet
Polishing Pond

16. 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.

17. 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
75 to 80 % reduction of organic load
Lotus Biotechnology
Primary Sludge to Sludge Handling System

18. 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 %.
Degassing Mechanism is removes dissolved gases present in the UASB outlet. It also increases dissolved oxygen in the UASB treated water.

19. Raw & Treated Sewage Quality
Sr. No.
Parameters
Unit
Raw
After PST & UASB
After
Tertiary
PCB Norms 1 pH - 2
Biochemical Oxygen Demand (BOD)
mg/l
250
≤ 25
≤ 20
≤ 30 3
Chemical Oxygen Demand (COD)
400
≤ 75
≤ 100 4
Total Suspended Solids (TSS)
200
≤ 10 5
Oil & Grease 15
≤ 2

20. 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

21. Merits of Lotus LCST Process (Rural, Urban and Municipal)
Minimum installation cost & time.
Minimum electrical power requirement (only two pumps required).
Minimum maintenance.
Minimum operation cost (less manpower, Chemical, Lubrication cost).
Very good outlet quality.
Almost zero noise.
Removal of nitrogen & phosphorus poor ( %) in cold climate & better (50 – 60%) in tropics.

22. Some Testimonials

23. Pimpri Chinchwad Municipal Corporation

24. Rahimatpur Municipal Council

25. Greenland Agrotech Pvt Ltd

26. Thank You