水净化

The factors included the type of extractant, the amount and the extraction times, the type of purified column, the type and dosage of eluviatant about the pre-treatment of the samples. The extraction was 3 minutes (13500rpm) of high speed homogenize extraction. 50mL acetonitrile as an extractant was acted on one time extraction. The florin silicon column was taken as the purified column. The extraction was eluted by 30ml 3:2 acetone - hexane and concentrated by nitrogen blowing under 50 °C water bath.The chromatographic separated conditions were studied applied the Agilent 6890 gas chromatographic apparatus and DB-17 capillary column(30m×0.25mm×0.25μm).

研究了提取剂种类、用量与提取次数，净化柱种类，淋洗剂种类与用量，提取方式与提取时间，柱温和柱流量等因素对油菜籽中有机磷农药残留提取、分离净化和色谱分离的影响，建立了采用高速匀浆提取方式提取3min13500rpm.min~(-1，以50mL乙腈为提取剂一次提取，以弗罗里硅柱为样品液净化柱，以30mL 3：2丙酮-正己烷为淋洗剂，在50℃水浴条件下用氮吹浓缩，气相色谱检测的油菜籽有机磷农药多种残留检测技术。

For building the ecological engineering to purify the eutrophic water, six economic plants ,which are Cress,Ipomoea aqutica,leek,Chinese chives,Celery and Hemerocallis respectively,were selected,and the purification ability and the bio-ecological character of them were studied.

为建立净化富营养化水体的生态工程，本试验选择水芹、水蕹菜、韭菜、葱、黄花菜、芹菜等6种经济植物，研究了各种植物的净化能力及其生物学特性。

In the study on the relation of wastewater concentration and nitrogen and phosphorus purifying effects of plant-hydroponic wastewater system with Ipomoea aquatica as hydroponic plant,3 concentrations(5%,10%,20%)of cesspool wastewater were set up and the TN,NH4+-N,fTN,PO43-P,fTP,CODCr and fCODCr were determined at 0,2,4,6,8 and 11 day resp.

在植物水培污水净化系统中对污水浓度与氮磷净化效果间的关系进行研究，蕹菜作为水培植物材料，对设置5%、10%、20%不同浓度的化粪池出口污水，分别于第0、2、4、6、8、11 d测定TN、NH4+-N、过滤后总氮、总磷、PO43-P、过滤后总磷、CODCr、过滤后COD。

In the study on the relation of wastewater concentration and nitrogen and phosphorus purifying effects of plant-hydroponic wastewater system with Ipomoea aquatica as hydroponic plant, 3 concentrations （5 %, 10 %,20 %） of cesspool wastewater were set up and the TN, NH4^＋-N, fTN, 19043 p, fTP, CODCr and fCODCr were determined at 0, 2,4,6,8 and 11 day resp.

在植物水培污水净化系统中对污水浓度与氮磷净化效果间的关系进行研究，蕹菜作为水培植物材料，对设置5％、10％、20％不同浓度的化粪池出口污水，分别于第0，2，4，4，6，8、11d测定TN、NH4^＋。N、过滤后总氮、总磷、PO4^3、过滤后总磷、CODCr、过滤后COD。

Based on the national tenth five magnitude project — Suzhou City Water Environment Improvement and Synthesize Demonstration item, we carried out the static simulation test and the dynamic simulation test under the condition of heavy pollution loading rate and low transparency and dissolved oxygen in polluted river of suzhou ancient city district. These investigations were on the base of the formers' work. We analyzed the purification effects and rules of plant floating-bed technology on polluted river water, and also applied the technology to purify the polluted river water in Miaojia River. Conclusions were summed up in the following:The dominance plant option test was carried out among Oenanthe javanica, Lolium mutliflorum and Allium sativum under low temperature condition. The results showed that the Oenanthe javanica was the dominance floating-bed plant under low temperature condition. Its net removal rate of TN、 NH_3-N、 TP、 COD_ were 51.3%、 65.2%、 55.6%、 57.6%, respectively, and inhibition rate of algae reached 92.3%.

本论文以国家863重大科技专项——&苏州市城市水环境质量改善与综合示范&项目为依托，在前人研究的基础上，根据苏州古城区污染河道污染负荷重、透明度及溶解氧低的实际情况，通过静态、动态模拟试验，研究了植物浮床技术对污染河水的净化效果及规律，同时在苏州古城区内的苗家河开展了植物浮床技术净化污染河水的示范应用，得出了以下结论：(1)低温条件下对水芹菜、多花黑麦草、大蒜三种浮床植物筛选的试验表明：水芹菜是低温条件下浮床植物的优势种，其对TN、NH_3-N、TP、COD_的净去除率分别为51.3%、65.2%、55.6%、57.6%，对藻类的抑制率达92.3%。

Methods: The sample that pass through handled to be abstracted twice by acetonitrile, evaporate the organic phase to dryness following defecated through the Na2SO4, cleaned-up by norm alhexalle, then analysed by HPLC (C18 column) with a gradient system of methanol-water as a mobile phase.

经处理过的样品用乙腈提取两次，将乙腈过无水硫酸钠层后挥千乙腈，正己烷洗涤净化，经过净化后进行高效液相色谱仪测定（C18柱），本方法以甲醇、水为流动相梯度洗脱，柱温35℃，在波长275 nm处测定。

The invention has steps:(1) In a biochemical reactor, carrying out biological processing to get mixed liquor;(2) Separating mud with water of the mixed liquor in sediment area of the biochemical reactor, discharging supernatant solution;(3) Supernatant solution is processed in a beach purification band planted with emerging plant, floating plant and/or submergent plant, adsorption granular material and enzyme-promoted packing are arranged on lakebed of the beach purification band, film aggregate is suspended in 0.4 m depth of the lakebed;(4) The purified effluent discharges into natural water body.

本发明步骤为：(1)在生化反应器内进行生物处理，得到混合液；(2)混合液在生化反应器沉淀区进行泥水分离后，出上清液；(3)上清液进入湖滨净化带处理，湖滨净化带植有挺水植物、浮水植物和/或沉水植物，湖滨净化带水底湖床铺垫吸附粒料与酶促填料，在湖床底0.4m水深悬置挂膜骨料；(4)净化处理后的出水排入自然水体。

Increase an air decontamination system in the foundation in a type machine,principle is air that exhaust fan will through percolation,from the engine room crest of the net sends in to spray to paint the space after filtering,spraying surplus oil fog of the paint creation and varnishing the flavor was taken to spray to paint by the midhty current of air building collections the inside passes water fog decontamination empress that several waters fog of the stainless steel water plank empress spray a jet,from row breeze tube fly to eject.

在A型机的基础上增加一个空气净化系统，原理是抽风机将经过过滤的空气，从机房顶的滤网过滤后送入喷漆空间，喷漆产生的多余油雾及油漆味被强大的气流带到喷漆房收集口内通过不锈钢水帘板后的多个水雾喷头喷出的水雾净化后，由排风管流向面排出。

The operation outline of the water supply and purification station in the Pulp Plant of 200T/d in Myanmar: water from river is pumped to the two clarifiers of φ25 in the purification station via intake pump house, and flows through the filtering pond and the clear-water reservoir where it is fed to all workshops through the clear water pump house.

缅甸200T/d浆厂给水净化站生产概况：河水经取水泵站将原水抽送到净化站的两座φ25圆形澄清器，经滤池、清水池，最后由清水泵房将水送至各车间斜板沉淀池设计，同时缅方工艺中增加一条生产水经加氯消毒处理后的生活用水管线，缅方的整个水处理工艺依然是采用化学、物理的方法来达到除去水中杂质的目的。

After analyzing the hydrodynamic condition and the variations of the water environment factors over the past 20 years(1983-2003) of Tieshangang bay ,we tried to find out the relationship between the self-purifying ability and the environment factors of Tieshangang Bay.

通过对铁山港湾水动力条件及20a(1983~2003年)来水环境因子变化状况的分析，探讨了该湾水体自净能力及其与环境因子之间的关系，结果表明：该湾具有较强的水体自净能力，但其物理净化能力是以潮流的水动力作用影响为主，迳流影响较小，与北海湾和钦州湾有明显差别；其化学净化能力主要体现在溶解氧的含量水平、有机污染物的氧化分解能力、营养盐的形态转化及消减程度上；其生物净化能力则体现在微生物及浮游动植物对有机物的直接降解及间接贡献上，具有贫营养区的水体自净特点。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。