• 关键词：焦化废水  污染特征  污染控制  控制策略  工程技术

• 基金项目：中国高技术研究发展计划(863)(No.2006AA06Z378);国家自然科学基金资助项目(No.50278036)

• 韦朝海
• 华南理工大学环境科学与工程学院, 广州 510640

• 贺明和
• 华南理工大学环境科学与工程学院, 广州 510640

• 任源
• 华南理工大学环境科学与工程学院, 广州 510640

• 李国保
• 广东省韶关钢铁集团有限公司焦化厂, 韶关 512123

• 陈金贵
• 广东省韶关钢铁集团有限公司焦化厂, 韶关 512123

• 摘要：针对量大面广、成分复杂、具有典型的有毒/难降解工业有机废水特征的焦化废水,介绍了不同生产工艺的水质水量、污染物组成、有机污染物的生物降解特性及基于其特性的废水处理方法的选择;重点分析了以脱氮为目标的A/O、A²/O、A/O²、O/A/O工艺的特点,强调了生物流化床反应器的高效性;从溶解氧、温度、pH值、营养组成、污泥龄及有毒有害物质调控等方面讨论了焦化废水污染控制过程的影响因素,比较了不同工程工艺的技术特点与经济差异,对一些敏感性指标提出了控制策略,强调了技术创新与政策性补偿有助于解决行业环保问题的观点.

• Abstract：Coking wastewater is a typical industrial organic/hard-biodegradable wastewater with complicated components and large discharge amount. This paper introduces the quality and quantity of coking wastewater, the constituents of pollutants, the biodegradation characteristics of organic compounds and the selection of treatment methods. The technical characteristics of A/O, A²/O, A/O² and O/A/Owhich have denitrogenation ability were analysed. The biological fluidized bed reactor is effective for the removal of CODand nitrogen. DO, temperature, pHvalue, nutrition, SRTand toxic/harmful matter which affecting the process of pollutants control were discussed; several projects and processes were compared from the technical aspects and economic differences. The control strategies of some sensitive indicators were introduced. It was pointed out that the technological innovation and policy-related compensation benefit the solving of environmental problem.

• Key words：coking wastewater, pollution characteristics  pollution control  control strategies  engineering technology

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