回流污泥

得出试验结果如下：1、进水较低BOD负荷、较高DO浓度以及回流污泥中大量硝酸盐、DO是导致工艺除磷效果不佳的主要因素。

The following conclusions can be drawn according the experiments : 1 . Low BOD and high DO level of the inlet , great amount nitrate and DO in the returned sludge are the adverse factors to the phosphorus removal .

部分颗粒化的生物铁污泥沉降效果好，能保证系统有较高浓度的回流污泥，从而提高了曝气池的污泥浓度。

The partially granulated sludge in bio-ferric process has good sedimentation effect , which can provide the returned sludge with higher concentration , and thus increasing the sludge concentration in aeration tank .

为了探讨剩余污泥减量问题，采用臭氧氧化法处理曝气池回流污泥，考察臭氧氧化污泥减量技术对出水COD、NH3-N和TP的影响。

To discuss the problem of excess sludge reduction , ozonation was used to treat sludge from aerotank , and influences to COD 、 NH_3-N and TP by excess sludge reduction were studied .

由于磷的释放是以浓缩形式，只是在回流污泥这股小的侧流中进行的，所以当加入这些发酵液后，在厌氧放磷区保持较高的生物易降解COD浓度是可能的。

It is possible to keep a higher concentration of readily biodegradable COD in anaerobic stripper because P release is carried out in a concentrated form , in the small sidestream , when the lipuor is added into the stripper .

结合透射电镜图片的机理分析表明：石灰中的CaO可与废水中的糖类等物质反应生成沉淀，在回流污泥吸附卷扫与PAC电性中和的共同作用下，色度和COD得到明显去除。

Together with the results of transmission electron microscope observation on sludge , mechanisms analysis showed CaO could react with certain carbohydrates to form precipitation . COD and color were removed dramatically by the adsorption and sweep of the reused sludge and through charge neutralization by PAC .

结果表明，后者具有更好的脱氮能力。BSAS工艺采用强化吸附手段让回流污泥与原水在缺氧条件下混合（30min），促进贮存物质的积累，加速内源反硝化作用。

The results showed that the denitrification capability of the BSAS process was better than SCAS process , due to enhancement of adsorbing measure , and let the return sludge mixed with raw wastewater under anaerobic condition for less than 30 min.

回流污泥强化城市生活污水一级处理的研究

Study on Strengthening of Municipal Wastewater Treatment by Recycled Sludge

活性污泥系统的回流污泥量控制策略

Study on the Strategies for Control of Sludge Recycle Flow in Activated Sludge System

超声波流量计测回流污泥量

Ultrasonic measurement of returning activated sludge flowrate

本文介绍了采用超声波流量计测量回流污泥量的有关情况。

The application of alternate ultrasonic flowrate meter for returning activated sludge measurement has been presented in this paper .

利用二级处理的回流污泥进行接种对好气滤池的启动没有加速作用，相反，还会延迟启动时间。

Seeding activated sludge from a secondary treatment pant can not help start-up , and on the contrary , it may delay a start-up .

以往常采用明渠流量计测回流污泥量，不仅误差大，而且流量系数转换、标定都十分困难。

Traditionally the flowrate of returning activated sludge was measured by open channel flowrate meter with higher error , difficult transform of flowrate coefficients and inconvenient calibration .

悬浮填料活性污泥法中试试验系统，利用某城市污水厂生产工艺回流污泥为系统悬浮污泥，探讨了悬浮填料投配比、投配方式和中试硝化效果之间的关系。

The relation among the adding ratio of suspended media , the adding mode and the system 's nitrification is explored using on-site process ' return sludge as its suspended sludge , according to pilot-test system for suspended media activated-sludge process .

论文在钙盐混凝沉降法除氟研究中，通过一系列试验，确定了最佳运行工艺参数及操作条件，探明了同离子效应，回流污泥等影响因素的作用，建立了氟去除化学动力学方程。

In the research of removing fluoride by lime sedimentation method , by arranging a series experiment , confirm the optimal process parameter and manipulating conditions , establish chemical kinetics equation on the fluoride removal , study the effect of reflux CaF2 sludge .

本工作从扬子石化工业污水处理厂回流污泥井提取活性污泥样品，通过分离、培养和驯化，得到能以氯酚类化合物为唯一碳源和能源的耐受复合菌。

Dominant mixed bacteria which was able to utilize chlorophenol as sole carbon source and energy source was isolated , incubated and domesticated from the sludge collected from the returned sludge well hole in the Yangzi Petrochemical Company 's industrial wastewater treatment plant .

回流剩余污泥使A1段出水pH略低于无污泥回流的情况，但对A2段和O段pH值影响不大。

The pH in A_1 segment with sludge recycling was a little lower than that without sludge recycling , but the performance of A_2 and O segments was affected less severely by sludge recycling .

回流氧化沟污泥至水解酸化池大大增加了池内混合液污泥浓度，使COD和SS的平均去除率分别上升了10%和5%左右。

Recycling the activated sludge of oxidation ditch to hydrolytic acidification can greatly enhance the consistency of MLSS and increase the removal rate of COD and SS about 10 % and 5 % .

超声波&树脂法/封闭回流消解测定污泥总磷

Measuring Total Phosphorus of Sludge with Ultrasound-Cation Exchange Resin / Sealed Digestion

提出一级污泥絮凝吸附&沉淀工艺，利用回流一级污泥的絮凝吸附作用强化一级沉淀处理。

A process of bioflocculation-adsorption for intensifying primary sedimentation by recycling primary sludge was developed in this study .

取某氯碱厂正常回流的活性污泥对余氯及五种有机氯化物进行急性生物毒性试验。

The acute biological toxicity of residual chlorine and five organic chlorides against normal backflow activated sludge in a CHLOR-ALKALI factory was examined .

与普通活性污泥法相比，不设混合液回流设备，污泥少量回流，工艺运行分六个阶段。

Compared with conventional activated sludge process , mixed liquor recirculation was omitted and sludge recirculation was decreased . The process was characteristic of continuous influent , cyclic running and integrative design . Six phases constituted a running period .

动态试验表明：通过污泥回流，把剩余污泥回流到A1段的工艺，可有效地实现对剩余污泥化。

Dynamic test shows that recycle of sludge to A1 part can efficiently realize the reducing of the sludge .

采用恒温水浴控制水解酸化池的温度为35℃，研究了HRT、SRT和污泥回流比对初沉污泥水解酸化的影响。

The temperature of hydrolysis and acidification reactor was controlled by thermostatic waterbath and the temperature was 35 ℃ . Effects of HRT 、 SRT and sludge recycle ratio on hydrolysis and acidification of primary sludge were studied .