共查询到19条相似文献,搜索用时 187 毫秒
1.
2.
介绍了城市给水厂污泥组成、处理工艺、污泥脱水机能耗,对给水污泥处理技术发展及污泥的综合利用进行了评价;首次提出了水厂排泥水回用节约电耗计算公式和经济效益计算公式,给出了算例,为水厂排泥水处理技术的应用提供了电耗方面的经济评价依据。 相似文献
3.
4.
5.
6.
7.
8.
结合工程概况,介绍了污泥处理的工艺流程,并对污泥浓缩池的原有运行情况、调整后的试运行参数进行了分析,通过对试运行数据的归纳分析,对其排泥水含固率进行了阐述,同时对运行阶段存在的问题及下一步试验方向进行了分析总结. 相似文献
9.
10.
水厂排泥水的静态沉降及动态浓缩试验研究 总被引:2,自引:0,他引:2
实施自来水厂排泥水处理首先要进行排泥水处理试验。结合在上海A水厂进行的静态沉降和动态浓缩等试验研究,指出了试验中应注意的问题。 相似文献
11.
12.
13.
14.
15.
16.
17.
18.
结合忻保高速公路施工实践,介绍了J4000型沥青混合料搅拌设备的技术参数,并总结了该设备的优良性能及不足之处,为J4000型沥青搅拌站的推广与应用提供了参考依据。 相似文献
19.
Enzymatic extraction of activated sludge extracellular polymers and implications on bioflocculation 总被引:4,自引:0,他引:4
This study examines enzyme hydrolysis, a mild, effective, but a rarely used method of extracellular polymer extraction, in removing polymers from mixed culture activated sludge flocs. Two carbohydrate specific enzymes (alpha-amylase and cellulase) and a protein specific enzyme (proteinase) are used during the study. First, the kinetic aspect is investigated, then enzyme dose optimization is carried out on laboratory grown activated sludge samples cultured at solids retention times (SRT) of 4 and 20 days. A more commonly used cation exchange resin (CER) extraction technique is also employed for comparison purposes. Results indicate that the extraction of extracellular polymers by enzymes is a rather quick process reaching equilibrium within only a few hours. As the doses of enzymes are increased, the extracted polymer quantities increase up to a certain dose, beyond which not much extraction is observed. The method does not cause any significant cell lysis as measured by the viable cell counts. Carbohydrate-hydrolyzing enzymes extract small amount of proteins along with the carbohydrates and protein-hydrolyzing enzyme extracts some carbohydrates together with the proteins, indicating that proteins and carbohydrates exist bound to each other in the extracellular polymer network of sludge. Enzyme extraction generally gives a lower estimate of polymers compared to the CER method, but correctly detects the trends in the polymer quantity. 相似文献