Kumar M Suresh, Vaidya A N, Shivaraman N, Bal A S
National Environmental Engineering Research Institute Nehru Marg, Nagpur 440 020, India.
Indian J Environ Health. 2003 Jan;45(1):29-38.
Wastewater generated during coke-oven gas cleaning operations in the integrated steel plant contains phenol, cyanide, thiocyanate, and also oil and grease. Although the activated sludge process is widely practiced for biological treatment of coke-oven wastewater, it was observed during the evaluation of performance of full scale coke-oven wastewater treatment plant that oil contamination and poor sludge settleability had resulted in poor maintenance of the activated sludge process. Keeping these aspects in view, treatability studies were conducted and an alternative treatment process is proposed. With these corrective measures the coke-oven wastewater treatment plant will give desired performance. In this paper we present results of the performance evaluation, data on treatability studies and alternative treatment process scheme.
综合钢铁厂焦炉煤气净化作业过程中产生的废水含有苯酚、氰化物、硫氰酸盐，以及油和油脂。尽管活性污泥法广泛应用于焦炉废水的生物处理，但在对全尺寸焦炉废水处理厂的性能评估过程中发现，油污和污泥沉降性差导致活性污泥法的维护效果不佳。考虑到这些因素，开展了可处理性研究，并提出了一种替代处理工艺。通过这些纠正措施，焦炉废水处理厂将实现预期性能。本文介绍了性能评估结果、可处理性研究数据以及替代处理工艺方案。
