除

The mechanism of biological denitrification and phosphorus removal is briefly analyzed in this paper,and several new effective and practical processes are also introduced.

对污水的生物法脱氮除磷机理作了简要的分析，并介绍了几种高效、经济、实用的生物脱氮除磷新工艺。

A spraying system is used in this study for deodorization in pig farm and composting center.

中文摘要本研究采用喷雾除臭系统进行堆肥场与养猪场的除臭之研究。

The constituent,work mechanism and chemical reaction process of a photoelectric ion deodorization device were presented.

阐述了市政污水中臭气的成分及来源，除臭工艺的原理，介绍了光电离子除臭装置的组成部分。工作机理及化学反应过程，总结了该装置在应用方面的优点

The distribution of odor point sources in Qige WWTP was analyzed,the basic principle of soil deodorization was introduced,and some experience in operation and management of the soil deodorization system was summarized.

分析了杭州七格污水处理厂的臭气点源分布，介绍了土壤除臭的基本原理，总结了土壤除臭系统运行与管理的一些经验。

And compared to other deodorization technology, the advantages of plant liquid deodorization technology is not only affordable and easy to operate, but of wide applicability, occuping less area, and no need to change their existing sites or more additional facilities.

与其它的除臭技术相比，植物液除臭技术的优点不仅在于经济实惠、操作方便，而且有适用性广、占地少、不用改变原有的场所和附加更多的设施等。

According to the origin and characteristic of feather's unusual smell,the antiseptic method and deodorizer have been discussed in detail from two aspects-the elimination unusual smell and preventing the unusual smell in the future.

根据羽毛异味的来源和特性，从消除异味和防止日后异味重现二方面，较详细探讨了在现在和可见的未来，羽毛灭菌除臭的手段和灭菌除臭剂的配制技术，寻找到一种相对绿色环保并且灭菌除臭效率比较高的羽毛灭菌除臭剂。

A new type of active iron deoxidant is introduced which is of little harm,of high effectiveness,and stable in property and can be used in normal temperature.

为此，研制了新型的高效活性铁除氧剂，可在常温操作，物理性能优良，有害元素含量极低，是应用于水处理系统的优质除氧剂

New type of water chemistry for utility drum boiler and its principle and characteristic Two kinds of water chemistry's main principle and characteristic are detailedly analyzed. Against the problem of high eroding speed, high Fe content in feed water and boiler water, high scaling speed, short chemical cleaning interval, needing poisonous chemical deoxidant, etc for drum boiler's deoxidization water chemistry and difficulty of using oxidation water chemistry, a new type of water chemistry is put forward on the basis of analyzing the characteristic of whole power station's water steam cycle system, principle of two kinds of water chemistry and their practical effect in every cycle stage. Considering two water chemistry's merit, a new water chemistry called Limited Oxidation Water Chemistry is put forward, which is a local slight oxidization no-deoxidant water chemistry. And the proposed method's principle, control parameter, applying condition, start-lay up and emergency measures are initially calculated and analyzed.

三、新型汽包炉水化学工况的提出及其原理和特点详细分析了国内外现行两大类水化学工况处理的核心原理和特点，针对现行汽包炉还原性水化学工况处理所存在的系统腐蚀速度相对较大、给水和炉水铁浓度高、锅炉结垢速度快、机组酸洗间隔短、无法避免有毒化学除氧剂的使用以及氧化性水化学工况在汽包炉机组上应用的困难等问题，在详细分析电站整个水蒸汽循环系统的特点、两类水工况处理的原理和对循环中各段处理的实际效果等的基础上，综合两者的优点，提出了一种新型的局部轻微氧化性无除氧剂汽包炉水化学工况－"汽包炉有限氧化性水化学工况"处理原理，并初步计算、分析和确定了该种新型水化学工况的主要工艺控制参数、应用条件、启停与紧急情况处理等。

The effect of concentration of Co(NO3)2,concentr ation of Ca++、Mg++ and pH value on the deoxidation rate of Na2SO 3 were studied respectively.

研究了Na2SO3的除氧效果，讨论了pH值、Ca和Mg 离子浓度、催化剂Co(NO3)2的浓度对Na2SO3除氧效果的影响。

In the operation of power plant, the effective air extraction plays an important role in ensuring good deoxidization for condenser.

在电厂运行中，有效地抽除空气对于保证凝汽器良好的除氧效果是很重要的。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。