Quality of Wastewater from Creaming Process of Skim Natural Rubber Later Using Hydroxypropyl Methylcellulose

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Keywords:
Creaming process Hydroxypropyl Methylcellulose Hydraulic retention time Skim Natural rubber latex

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Jurairat Nitayapat
Graduate School, Chulalongkorn University, Bangkok, Thailand
Surapich Loykulnant
National Metal and Materials Technology Center, National Science and Technology Development Agency, Pathumthani, Thailand
Puttaruksa Varanusupakul
Faculty of Science, Chulalongkorn University, Bangkok, Thailand

Abstract

In this study, hydroxypropyl methylcellulose (HPMC) was used instead of concentrated sulfuric acid in the creaming process of skim natural rubber latex. In comparison to the process using concentrated sulfuric acid, the effluent acidity and sulfate ion were significantly lower but biochemical oxygen demand (BOD) and chemical oxygen demand (COD) were slightly higher. In overall, the pollution of the effluent from creaming process was reduced using recovered HPMC process In the effect of hydraulic retention time. In contrast, BOD and COD were increased. However, the high value of BOD and COD was valuable for wastewater treatment by anaerobic process.

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How to Cite
Nitayapat, J., Loykulnant, S., & Varanusupakul, P. (2013). Quality of Wastewater from Creaming Process of Skim Natural Rubber Later Using Hydroxypropyl Methylcellulose. Applied Environmental Research, 31(1), 67–74. Retrieved from https://ph01.tci-thaijo.org/index.php/aer/article/view/9686
Issue
Vol. 31 No. 1 (2009): Jan.-Jun.
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Original Article
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