污水处理

Grit, fly ash, cinder residue, active carbon, air brick detritus were used as filtering media according to proper proportion for low concentration domestic sewage treatment.

选取粗砂、粉煤灰、细煤渣、活性炭和空心砖粉块作为介质，再按适当的比例配成填料处理柱，进行处理低浓度生活污水的研究。

A process for treating the sludge generated by alumina sewage treating system incldues such steps as pumping the alumina sewage in sand depositing pool then in depositing pool, mixing the bottom sludge, the sewage from sand-water separator, and the regenerated water from filter to obtain backflush water, heating in desilicating heater, washing the secondary red mud to recover Na2O and Al2O3, anjd returning the washing liquid containing Na2O and Al2O3 back to the flow of production of alumina.

本发明公开了一种氧化铝废水处理系统的污泥处置新工艺，它将氧化铝废水先进入沉砂池中进行沉砂处理后才进入沉淀池中，将虹吸泥机从沉淀池中吸出的底流污泥和砂水分离器分离出的污水以及将部分经过滤器过滤后所得的再生水作为反冲洗水一起通过污泥泵送到脱硅加热器中加热得污泥热水，然后将污泥热水用于二赤泥洗涤沉降，以回收赤泥附着的Na2O和Al2O3，将洗涤赤泥后含有Na2O和Al2O3的洗液送到氧化铝生产流程中重新使用。

An underground unpowered anaerobic reactor for the treatment of rural domestic sewage was studied in this paper, based on the anaerobic biomembrane technology and push-flow theory by using the anaerobic pipeline or baffler reactor full of hollow-sphere fillings.

该文根据厌氧生物膜技术和推流原理，采用内充空心球状填料的地下厌氧管道式或折流式反应器为处理设备，研究了农村生活污水地埋式无动力厌氧达标处理技术。

The result shows that the excessive activated sludge from the domestic sewage plant can be used to serve as the original sludge for the rapid re-start-up of UASB successfully by adding appropriate scrap iron and granule active carbon to UASB.

小试连续运行实验结果表明，在UASB中加入适量铁屑和活性炭颗粒，以生活污水处理厂剩余污泥为种泥可以成功实现UASB＋SBR处理系统的快速启动，消除DO2-4对生物处理系统的影响，并在较短的时间内（21 d左右）培养出了厌氧颗粒污泥。

At present,the disposal and recycle of sludge mainly centers around handfill,cineration and composition in our country.

目前我国城市污水厂污泥的处理处置方式主要以填埋、焚烧、堆肥为主，这些处理处置方式存在着一系列问题。

Because of specificity and high efficiency, the catalytic efficiency of cellulase is high(more 103~1013 times than general catalysts), the condition of catalytic reaction is mild and the catalytic activation can be adjusted and controlled, which can improve remarkably semblance and handle of fabrics during finishing fabrics by biological catalyzing, moreover cellulase can replace some chemical materials such as acid, cocain, chlorine and phosphorus etc, so as to decrease pollution, make no waste-water and protect environment.

由于酶具有专一性和高效性，采用生物催化，其催化效率高比一般催化剂高10~3～10~(13倍，催化反应条件温和，催化活性可调节控制，应用在纺织品处理上，能显著改善织物的外观和手感，并能取代一部分酸、碱、氯、磷化合物等化工原料，从而减少污染，不产生污水，有利于环保和生态。而且酶本身又无毒，容易生物降解，不会引起环境污染，所以酶处理已被公认为是一种符合环保要求的绿色印染加工方法。本文选用了市场上常用的纤维素酶R-10和纤维素酶ECS2610两种生物酶。

Finally made to the whole process of economic accounting, the accounting, the cost of sewage treatment per cubic metre for 0.59 yuan, and therefore, such a treatment process in the economic, entirely feasible.

最后对整个工艺作了经济核算，经核算，处理每立方米污水的费用为0.59元，因此，这种出处理工艺在经济上完全可行。

The laws and influencing factors of denitrification in soil are studied by the simulated experiment in this paper.

该研究对设计土地处理系统运行条件与选择新型污水自然处理技术，有一定的指导意义。

Urban wastewater was treated by the reed gravel bed constructed in fishpond , but the effluent could be reached the criteria of water quality for hygienic fish culture when pumped bottom water treated with reed gravel bed.

通过直接建造在鱼塘内的芦苇碎石床处理城市污水后，再抽鱼塘底层水回流到芦苇碎石床上进行再处理的试验研究表明，这种处理可使鱼塘水质达到卫生养鱼的水质标准。

After the coagulation and sedimentation in the jar test with ferric chloride, the residual COD in the supernatant was 9000 mg/L which was further oxidized by chloric acid or with Fenton method. The COD removal efficient increased with the increasing of the dosage of chloric acid from 0.5 ~ 100 g/L or the H2O2/Fe2+ from 5/2.5 ~ 50/25 g/L, and the economical dosage were suggested as chloric acid 50 g/L or the H2O2/Fe2+ 50/25 g/L which resulted in the residual COD of 400 and 3300 mg/L individually for 95 and 63 % COD removal percentages. Oxidation test showed that only 5 minutes was needed for 92 % COD removal in the case of chloric acid dosage 50 g/L.

废液A经氯化铁混凝沉淀后，COD浓度可降低至9，000mg/L，仍未符合符合工业区污水厂进厂限值(＜650mg/L)，进而使用氯酸钠直接氧化法及Fenton法以去除剩余之COD，其操作条件范围分别为氯酸钠加药量0.5g ~ 100g/L ，而最适加药量为50g/L，及Fenton法H2O2/Fe2+加药量范围为5/2.5g/L~50/25g/L，其最适H2O2/Fe2+加药量为50/25g/L，两种方法处理后残余COD浓度分别为400mg/L及3300mg/L，去除率约为95%及63%，而依此判断氯酸钠氧化处理残余COD有较好之效果，且利用氯酸钠氧化速率快，5分钟就能有92%去除率，所需水力停留时间较短，由此实验建议利用氯酸钠直接氧化处理，最适加药量为50g/L。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。