废水

This paper sets forth the principle,application state at present,running process and the methods of heightening removal efficiency for wastewater treatment by filtration with iron filings .

综述了铁屑过滤法处理废水的机理，及其在废水处理中的应用状况、运行方式和强化铁屑过滤处理的途径，指出铁屑过滤是一种经济、有效的废水预处理技术。

It is indicated by the results that using butanol,butanol residue and octene aldehyde residue as the extracting agent,the treatment of butanol wastewater will get a good result with the COD removed to be 83%～94%,u...

实验结果表明：以辛醇、辛醇残液和辛烯醛残液作为萃取剂，在废水pH值为1~3、萃取剂与废水的体积比为1∶(1~12)、温度为25~60℃条件下，对丁辛醇废水进行萃取处理，均可得到较好的处理效果，COD去除率可达83%~94%。

The Advanced Oxidation Processes of ozonization technique was used in treatment of the acid red B dye wastewater.

目的 研究臭氧氧化技术处理酸性红B染料废水的效果，并探讨O3投加量、废水的初始pH值、H2O2和O3物质的量比对臭氧氧化处理酸性红B染料废水效果的影响。

Results showed that advanced oxidation technique of ozonization has a good effect on removal of acid red B. After 30 min reaction with pH=7, up to 99.5% of color decay was obtained and chemical oxygen demand was 37.9%. If initial pH of the wastewater was increased to 11, the removal rate of COD was optimum.

结果 在pH=7的条件下，单一臭氧氧化30 min时，废水的色度和COD去除率分别为99.5%和37.9%；而废水的初始pH值控制在11左右时，COD去除率有较大提高。O3/H2O2氧化工艺，适宜的H2O2和O3物质的量比为0.6，氧化处理30 min废水的COD去除率可达53.5%。

In a word, according to the research of pulp wastewater treatment using pond-reed system, we discovered that the complex system can removal wastewater pollutants effectively, at the same time, the salinity of soil is dramatic decreased through wastewater washing, which bring many active results: increasing of N, P, and organic matter; enhancing of soil microbes, enzymes, MBC/TOC, and soil respire rate; increasing of reed height and yield, decreasing of weed diversity; affecting of transporting ability of Ca, Mg, K, Zn, and Mn , and improving of water shortage, salinity resistance and rhizosphere metabolized secretion conditions, all those improved the weak ecosystem.

总之，经过对生物塘-芦苇湿地系统处理造纸废水的研究，发现系统能有效去除废水中有机物，同时废水灌溉还极大的降低了土壤盐分，产生了一系列积极效应：系统内氮、磷、有机质增加；土壤微生物和酶活性增强；MBC/TOC及土壤呼吸强度提高；芦苇株高和产量增加，而杂草的多样性减少；同时也会影响系统内钙、镁、钾、锌、锰等离子迁移，改变系统受盐碱和缺水胁迫的现状和根际代谢状况，极大地改善了滨海盐碱生态系统现状。

The research situation of waste water treatment of gum rosin process ing at home and abroad was generally summarized.

概述了国内外对松脂加工废水治理的研究情况，系统分析了松脂加工废水的来源及特点，介绍松脂加工废水治理方面的成功方法和经验，通过分析生产过程的监控数据，为我国松香行业的污水处理提供了经验和依据。

In the biological treatment, anaerobic biological treatment is used to reduce selenate ions and/or selenite ions presented in the raw wastewater to transfer to single insoluble selenium.

在生物法中，采用厌氧生物处理来降低原始废液中可溶的硒酸盐与亚硒酸盐，并转化为不溶性的单质硒，从而以不溶性单质硒的形式去除硒酸盐或亚硒酸盐；在絮凝沉淀法中，通常是向生物处理后的废水中加入一种金属盐，使该金属盐与可溶性硒反应并生成一种不溶性硒化合物，从而以不溶性硒化合物形式去除残留的可溶性硒；在过滤法中，将絮凝沉淀法中残留在废水中的不溶性硒去除，这样就能在不用大量化学药剂和不产生大量沉淀的情况下去除含硒废水中的可溶性硒。

In view of the knowledge the cocentration of NaCl is very high in the second Smeltery of Jinchuan Nonferrous Metals Company.

基于对金川公司二冶炼厂污水处理站废水中含盐量极高性质的认识，本文提出了电渗电解法这一新型脱盐方法，并应用于金川公司废水脱盐过程，完成了金川公司废水脱盐全流程工艺实验及有关基础理论的系统研究。

Toxicity characterisation procedures indicated that the primary toxicants in the effluent were volatile,and could be reduced by sodium thiosulfate. Toxicity based fractionation techniques were conducted,and the oxidation organic chloridates were found not to be the major toxicants.

结果表明，废水对大型蚤具有急性毒性，曝气可去除废水的部分毒性，硫代硫酸钠的投加可去除废水毒性，同时用DPD试剂盒比色法可测出游离态氯气和一价氧化态氯化物。

Based on the review about the application of modified bentonite in wastewater treatment, the study of adsorption of Cr in wastewater on modified bentonite, the sorption behaviors for dualcation organobentonites to sorb phenol and 2,4-dichlorophenol, the sorption mechanisms for modified bentonites to sorb pollutants from multisolute systems and the treatment of dye wastewater by the integrative was investigated.

本文在总结了国内外对改性膨润土在废水处理领域中的应用研究的基础上，研究了目前在此领域研究较少的有机无机复合改性膨润土对Cr废水的吸附、双阳离子膨润土对酚类吸附的贡献率、多组分复合体系的吸附机理及有机膨润土的合成-印染废水处理一体化工艺。

Finally, according to market conditions and market products this article paper analyzes the trends in the development of camera technology, and designs a color night vision camera.

最后根据市场情况和市面上产品的情况分析了摄像机技术的发展趋势，并设计了一款彩色夜视摄像机。

Only person height weeds and the fierce looks stone idles were there.

只有半人深的荒草和龇牙咧嘴的神像。