降低某油田采油污水处理中污泥产生量技术研究

• 作 者: 马云 白海涛 杨立华 付伟 崔海清
• 机 构: 西安石油大学,陕西省油气田环境污染控制技术与储层保护重点实验室,中国石油长庆油田分公司油气工艺研究所,中国石油天然气管道工程有限公司(CPPE),中国石油大港油田公司第二采油厂,
• 出 处: 水处理技术
• 发表日期: 2012年05期
• 关键词: 采油污水 絮凝 回流污泥 污泥产生量

针对陕北某油田处理采油污水絮凝剂投加量和污泥产生量大的特点,采用“先回流污泥后絮凝”的方法进行降低污泥产生量研究,探讨了常规简单絮凝和“先回流污泥后絮凝”处理中污水pH、絮凝剂投加量、回流污泥量等因素对污泥产生量的影响。结果表明,“先回流污泥后絮凝”处理工艺能显著降低絮凝剂用量和污泥产生量,其中PAC和PAM投加量分别降低81.25%和50%,污泥产生量降低48.40%。处理后污水可达到SY/T 5329-1994回注水要求。

In view of the characteristics of large amount of flocculant and sludge produced by an oilfield sewage treatment in an oil field in northern Shaanxi, the study of reducing sludge production by adopting the method of “flocculation after the first reflux sludge” and the conventional simple flocculation and “The first after the flocculation flocculation sludge,” the sewage treatment pH, flocculant dosage, the amount of return sludge and other factors on sludge production. The results showed that flocculation after first reflux sludge treatment could significantly reduce the amount of flocculant and sludge production. The dosage of PAC and PAM decreased by 81.25% and 50% respectively and the sludge production decreased by 48.40%. After treatment of sewage can reach SY / T 5329-1994 backwater requirements.