The sulfate removal performance of wastewater treatment systems of concentrated latex factories

Pattanawan Wittayakul, F. of Environmental Management, PSU.
Somtip Danteravanich, F. of Environmental Management, PSU.
Sukprachok Uakritdathikarn, F. of Environmental Management, PSU.
Cherdchan Siriwong, F. of Environmental Management, PSU.
Udomphon Puetpaiboon, D. of Civil Engineering, F. of Engineering, PSU.
Corresponding e-mail : dsomtip@ratree.psu.ac.th

Presented : The International Symposium of the COE, Center of Excellence, Project on Establishment and Evaluation of Advanced Water Treatment Technology Systems Using Functions of Complex Microbial Community, March 6-8, 2000, The University of Tokyo, Japan
Key words : sulfate removal, concentrated latex factories, wastewater

Concentrated latex factories are an important part of the rubber industry in southern Thailand. However, wastewater from the factories contains high amounts of organic matter, nitrogen, sulfate and suspended solids. Under the existing treatment practices, concentrated latex factories usually use pond systems to treat their wastewater. These treatment systems include a rubber trap and anaerobic, facultative and aerobic ponds. By using such a treatment system, sulfate removal can be achieved, in particular in the anaerobic ponds.

The purpose of this study was to establish the efficiency of such treatment systems in remov- ing sulfate and organic matter from wastewater. The degradation rate of sulfate and organic matter in terms of SCOD were also verified. The results of this investigation can be used in improving the efficiency of wastewater treatment systems for the concentrated latex industry.

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