 Effects of wastewater recycling from natural rubber smoked sheet production on economic crops in southern ThailandS. Chaiprapat and S. Sdoodee Resources, Conservation & Recycling, 2007, vol. 51, issue 3, 577-590 Abstract: Production of rubber smoked sheets of Thailand is carried out by over 700 small cooperative rubber sheet factories (CRSFs). A survey of CRSFs in southern Thailand revealed that most do not have adequate treatment for their wastewater. To investigate potential of this wastewater for agricultural use, a representative CRSF in southern Thailand was selected as a study site. Results showed that the waters in all the treatment ponds were in anaerobic state, and the final effluent from the system had never met the discharge standards. In the first experiment, pH of the final effluent was adjusted by the residual ash from fuel rubber wood, used in rubber smoking, before being mixed with tap water at ratios 1:0 (pure effluent), 1:1, 1:2, 1:4 and 0:1 (pure tap water as control). The experiment was carried out in a glasshouse where Chinese green mustard and cucumber were used as test plants. Results showed that the plants irrigated with effluent mixtures had higher yields than those plants in the control set, and the ratio of 1:2 with ash addition showed a prominent result. Keywords: Rubber smoked sheet; Wastewater; Reuse; Rubber tree; Rice; Vegetable (search for similar items in EconPapers) Downloads: (external link) Related works: Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text Persistent link: https://EconPapers.repec.org/RePEc:eee:recore:v:51:y:2007:i:3:p:577-590 DOI: 10.1016/j.resconrec.2006.11.003 Access Statistics for this article Resources, Conservation & Recycling is currently edited by Ming Xu More articles in Resources, Conservation & Recycling from Elsevier |
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