污油泥絮凝机理及其研究进展

Flocculation Mechanism of Sewage Sludge and Its Research Progress

摘要:

在原油开采至加工一系列工段中产生大量污油泥，若不进行处理，将会对环境造成严重危害。由于其组成的复杂性，对其界面发生的物理化学过程的研究极其困难，因而其絮凝机理仍处于探索阶段。本文根据污油泥处理过程，对常见的化学絮凝过程进行了总结，并对各自不同的主要絮凝机理及优势和局限性进行分析，普遍认为化学絮凝机理有吸附架桥、卷扫网捕等；对于微生物絮凝剂，其絮凝机理为菌体外纤维素纤丝、黏质、荚膜、胞外聚合物架桥、电性中和等，最后对絮凝剂的前景进行了展望。

Abstract:

In the extraction of crude oil to a series of sections produced a large number of sludge, if not treated, will cause serious harm to the environment. Due to the complexity of its composition, it is extremely difficult to study the physical and chemical processes at its interface, so flocculation mechanism is still at the exploratory stage. According to the sludge treatment process, the common flocculation process Summed up and different the main flocculation mechanism and the advantages and limitations of the analysis, In this paper, it summarized the process of common flocculation process according to the sludge treatment and analyzed advantages and limitations in terms of the different main flocculation mechanism. A popular view on flocculation mechanism is adsorption bridging, network scanning, etc. As for micro-organisms flocculation, the mechanism is extracellular cellulose fibrils, Sticky, capsule, extracellular polymer bridging, electrical neutralization, etc, Finally, the prospect of flocculant is prospected.