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| Evaluation of wastewater treatment technologies of enterprises in an industrial park based on optimization of the whole wastewater treatment process |
| YAO Ya-jing1,2, LU Xue-qiang2, SHAO Xiao-long2, LIU Hong-lei2, LI Hui2, TAN Cui-ling2 |
1. Hebei University of Technology, Tianjin 300401, China;
2. Tianjin Academy of Environmental Science, Tianjin 300191, China |
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Abstract The evaluation methods for common industrial wastewater treatment technologies are not applicable to enterprises in industrial parks, due to different drainage ways of the effluents from enterprises in or not in a park. Therefore, this paper aims to establish a method for evaluating wastewater treatment technologies of enterprises in the industrial parks from optimization of the whole wastewater treatment processes and steady compliance with discharge standards for effluent from wastewater treatment plant in the industrial park, using the new indicators like BOD/CODcr ratio and standard share ratio. The proposed evaluation method had been applied in one industrial park of Tianjin and the application results showed that scores for the technologies with biochemical process were relatively low (<70), indicating that the excessive biochemical treatment in the enterprise aggravated the lack of carbon source in the common end-pipe sewage treatment plant of the park and the biochemical process is not suggested to be applied for the wastewater treatment of the enterprises in an industrial park. The results also showed the established evaluation method is feasible.
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Received: 11 January 2017
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