THE PROJECT
An export-oriented soap-producing unit in Southeast Asia is setting up a new production facility for their quality soap products.
THE PROBLEM
The premises are expected to generate wastewater containing a high amount of surfactants with high COD levels. Due to stringent discharge standards, the premises are required to meet COD < 100 ppm treated effluent criteria.
- High levels of Surfactants present in the effluent
- COD as high as 10000-15000 ppm
THE SOLUTION - Soap industry effluent
Based on our previous experience with similar effluent-containing surfactants, a treatment process using the DAF and LEVAPOR IFAS process was suggested.
Soap industry effluent treatment scheme:
- Equalization Tank
- DAF with chemical dosing
- LEVAPOR IFAS Reactor
- Secondary Clarifier
THE RESULTS
Despite having a high COD load and the presence of surfactants with other solvents and active detergent products, the plant is achieving the desired COD reduction of < 100 ppm at the outlet.
| Parameter | Value |
|---|---|
| Flow rate | 25-40 m3/day |
| Inlet COD | 10000-15000 ppm |
| Outlet COD | <100 ppm |
THE BENEFITS
- Remarkable process stability despite the presence of surfactants
- Consistent performance achieving COD < 100 ppm at the outlet of biological process
Amit Christian is a MSc graduate in Environment Science from Middlesex University, London, UK. He has been active in the field of water and wastewater treatment since 1998. He specializes in the design, engineering, and management of various biological wastewater treatments such as Activated Sludge Process (ASP), Sequencing Batch Reactor (SBR), Moving Bed Bio Reactor (MBBR), and Integrated Fixed Film Activated Sludge (IFAS). He has helped various Industrial and Municipal clients in troubleshooting, and optimizing their biological wastewater treatment processes to achieve the latest Stringent norms for Ammonia Removal.
