Treatment of the Sugar Industries Effluent


A prominent sugar mill located in the South East Asia has an industry regulation for effluent treatment from the plant to meet a new discharge requirement of COD < 100 ppm.


Achieve the desired treatment goals with their required existing biological system, despite wide fluctuations in the net production at the facility.

The effluent generated from the premises has a varying flow rate of 300-600 m3/day and COD variations from 3000 to 4000 ppm. The plant also has issues with shock loads due to various routine maintenance activities within the production facilities.


Based on site trials at the proposed project the following treatment proposal was suggested:

Treatment Scheme:
  • Micro Aerobic Equalization Tank
  • LEVAPOR IFAS Reactor
  • Secondary Clarifier                                                                   


The plant is consistently achieving desired outlet levels of COD < 100 ppm under varying flow and COD load conditions.  Due to the implementation of the LEVAPOR IFAS Process, the settling properties of the MLSS has improved drastically and effluent has much better clarity at the outlet of secondary clarifier with lower level of TSS carryover.


  • Smaller foot print of just 500 m3 reactor volume
  • Consistent COD reduction under all load conditions
  • Better capability of tolerating toxic shock load
  • Better settling properties of the MLSS and thus higher quality of treated effluent at the clarifier outlet.