Envisol – A part of Arvind Limited

National Workshop cum Technology Exhibition for Promoting Energy Efficient and Cleaner Production for Sustainable Industrial Growth

8th-9th March 2018

Mahesh Thakar

60+ Projects

executed till date

22 Registered

Patents across

the globe

END TO END Offerings in the entire water

chain

STRONG Pre Qualification

References

100+ Million Litres

water and waste

water processed

per day

Our Business

is Water MAKE In India

AEL is a world class water management company providing end to

end solutions for water treatment, industrial waste water treatment,

sewage treatment, zero liquid discharge solutions at minimal costs.

Evaporation-Nature’s Purification Method

PROCESS

PRETREATMENT EVAPORATION RE –USE

OR DISPOSAL

CONCENTRATE

WASTE WATER CLEAN WATER

MAKE UP WATER

Zero Liquid Discharge System by Evaporation

Benefits of Evaporation

Excellent water quality, which can be used for almost any purpose

High recovery rate leaving only a small volume of concentrate or

solids for reuse or final disposal

Substances may be recovered by crystallization

Constant capacity and water quality

Not sensitive to changes in feed water quality

Only simple pre-treatment needed, if any

Strict discharge limits can be met / Full Compliance

Bottlenecks of Conventional Evaporation System

High Operating Cost (Steam + Power + Maintenance)

High Corrosion Rates

• Pitting on the metal surface due to corrosion even with expensive material of

construction like titanium.

• Replacement of Heat exchanger required periodically.

High Scaling Rate

• Frequent cleaning

• Down time for descaling

• Disposal problem of cleaning chemicals

Separate Steam System is required – Boiler Capex + Opex

Solution – Polymeric MVRE

MVR Fan-Heart of the system Patented Polymer film

Cassette

The Evaporation Module

Patented heat transfer polymer element enables efficient heat transfer at lower temperatures Improves

efficiency and uses MVRE for reduction of costs and maintenance

Operating Principle – Evaporation Module

Operation Principle – Polymeric MVRE

Turnkey EPC Projects

11 MLD Zero Liquid Discharge Plant at Hawassa Industrial Park,

Ethiopia

Few Installations References

17 MLD ZLD plant at Arvind Limited, Santej

Few Installations References

Energy Efficient - Lowest OPEX Evaporation Technology

EFFLUENT TREATED THROUGH - PFET SYSTEM 1000.00 M3/DAY EFFLUENT TREATED - MEE SYSTEM 1000.00 M3/DAY

EFFLUENT TREATED - MEE SYSTEM 500.00 M3/ 3 DAY

POWER COST / KW 7.00 Rs./KW POWER COST / KW 7.00 Rs./KW

STEAM COST / KG 1.25 Rs./Kg. STEAM COST / KG 1.25 Rs./Kg.

BREAK UP OF OPERATION COST BREAK UP OF OPERATION COST

POWER COST POWER COST

UNIT KW/M3 COST RS/DAY UNIT KW/M3 COST RS/DAY

PFET SYSTEM 15.00 1,05,000.00

CRYSTALLISATION SYSTEM 22.00 25,666.67 CRYSTALLISATION SYSTEM 22.00 1,54,000.00

TOTAL POWER COST 1,30,666.67 TOTAL POWER COST 1,54,000.00

STEAM COST STEAM COST

UNIT Kg/M3 COST RS/DAY UNIT Kg/M3 COST RS/DAY

PFET SYSTEM 15.00 18,750.00

CRYSTALLISATION SYSTEM 280.0 58,333.33 CRYSTALLISATION SYSTEM 280.0 3,50,000.00

TOTAL STEAM COST 77,083.33 TOTAL STEAM COST 3,50,000.00

SUMMARY COST RS/DAY SUMMARY

POWER COST 1,30,666.67 POWER COST 1,54,000.00

STEAM COST 77,083.33 STEAM COST 3,50,000.00

TOTAL OPERATIONAL COST PER DAY 2,07,750.00 TOTAL O & M COST PER DAY 5,04,000.00

DIFFERENCE IN OPEX RS/DAY 2,96,250.0

SAVING COST PER YEAR RS/YEAR 10,81,31,250.0

PFET +MEE SYSTEM OPERATIONAL COST: MEE SYSTEM OPERATIONAL COST:

PROJECT : EVAPORATION SECTION - 1000 KLD

THUS OPERATIONAL COST FOR ZERO LIQUID DISCHARGE SYSTEM IS Rs.

207.75 /M3 OF EFFLEUNT

THUS OPERATIONAL COST FOR ZERO LIQUID DISCHARGE

SYSTEM IS Rs. 504 /M3 OF EFFLEUNT

COMPARISON OF OPERATING COST (STEAM & POWER CONSUMPTION) FOR EVAPORATION SYSTEMCLIENT : ARVIND LIMITED - SANTEJ

Conclusions - Polymeric Film Evaporation Technology

Evaporation in general: 1. Evaporation is the most powerful tool of water purification

2. Product losses to the condensate are non-existent

3. High investment and operation costs of conventional evaporators

4. MVRE reduces operation costs significantly

5. Corrosion, Scaling and Fouling may be a problem

New Polymeric Film Evaporation Technology: 1. Investment and Operation costs are considerably reduced

2. Scaling and Fouling problems are more easily managed

3. Low Steam Consumption (only during start-up)

Thankyou

Let us commit to solve the water woes by

using the state of art technologies, making

world a better place to live in