“SCALEBAN” ZLD PROJECT AT ADITYA BIRLA CHEMICALS THAILAND LIMITED
We are proud to share that Thai Sulphite Chemicals Ltd.,Thailand (Aditya Birla Group Company) has achieved water conservation and ZLD (Zero Liquid Discharge) objectives with Unique, disruptive, sustainable, Indian Technology "SCALEBAN" without implementing costly conventional technologies.
The Company:
Aditya Birla Chemicals (Thailand) (ABCTL) is a part of the Aditya Birla Group’s chemicals business. It has five manufacturing sites in Thailand. The Unit in case study is Aditya Birla Chemicals (Thailand), Sulphites Division located at Saraburi, Thailand and manufacturing Sodium Sulphites and Sodium Meta-Sulphites products.
Problems Faced By ABCTL:
ABCTL is generating approx. 300M3/Day effluent having TDS of approximately. 25,000 PPM & other parameters (as per table below) from various plant processes. As per Thai Pollution Control Board norms, ABCTL had to recycle this effluent for reuse and to achieve Zero Liquid Discharge (ZLD). Quality of this effluent was not suitable for RO hence they had no other option but to install Multi Effect Evaporator (MEE) for achieving ZLD objective. High CAPEX & OPEX was the serious concern for them to treat 300M3/Day waste water through Evaporator (MEE).
“SCALEBAN” Solution:
ABCTL installed 24 nos. of "SCALEBAN" equipment at the cooling water inlet of different process plant heat exchangers in Feb 2019 to utilize 300 M3/Day process effluent (Waste Water) as makeup in place of fresh water at their main process plant cooling tower. After implementation of "SCALEBAN" Equipment at the inlet of process plant heat exchangers and by using "SCALEBAN" Speciality chemicals in cooling tower, ABCTL is successfully using waste water in their process plant cooling tower and operating cooling tower at 3,00,000 PPM TDS(30%). Due to high COC operation of cooling tower ABCTL is giving only 20 m3/day blowdown having 30% TDS which they are sending to authorized agency in Thailand to handle it separately. ABCTL could manage to achieve ZLD objective on a sustainable & most cost effective basis by installing "SCALEBAN" technology.
ABCTL observed smooth operations of the plant with respect to heat exchange coefficient due to zero scaling in heat exchangers even at such high TDS level besides saving 300M3/Day fresh water. ABCTL also observe corrosion and bio fouling free operation of the entire cooling tower circuit.
Achievements of the "SCALEBAN"
Project A. Achieved water conservation and ZLD objectives on a sustainable basis without implementing costly conventional technologies like waste water RO and MEE B. 80% Savings in CAPEX. C. 80% Savings in OPEX D. Completed project in 6-8 weeks time E. Zero Carbon footprint F. 100% Saving in fresh water consumption in cooling towers After successful operation of the "SCALEBAN" project, ABCTL awarded repeat order to "SCALEBAN" for their another facility in Thailand. "SCALEBAN" Technology is handling 300m3/day process waste water and other cooling tower blowdown in process plant cooling tower successfully and achieved their water conservation and ZLD objectives on a sustainable basis.
Following are the treated waste water parameters which is being used as make up in cooling tower:
Wastewater Parameters / Cooling Tower Re-circulation Parameters
Aditya Birla Chemicals (Thailand)
Schematic Diagram for Recycling Waste Water with SCALEBAN Technology
Aditya Birla Chemicals (Thailand)
SCALEBAN Installation:
Appreciation for SCALEBAN Technology at Aditya Birla Chemical (Thailand):
We are thankful to ABCTL, Thailand for implementing “SCALEBAN” Technology for achieving water conservation and ZLD objectives on a Sustainable basis
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