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1)  phosphorus accumulating bacteria
高效聚磷菌
2)  phosphorus accumulating organisms
聚磷菌
1.
The overlap represents that denitrification, phosphorus uptake and nitrogen removal occur under anoxic condition due to contribution of phosphorus accumulating organisms.
在对生物脱氮与除磷机理进行深入研究后发现 ,生物脱氮与除磷是两个相对独立而又相互交叉的生理过程 ,其交叉点是部分聚磷菌在缺氧状态下的反硝化吸磷脱氮。
2.
This research focused on the enrichment of phosphorus accumulating organisms(PAO) and the formation of granular sludge simultaneously.
以实验室SBR反应器为载体,接种普通活性污泥,探讨了富集聚磷菌和培养好氧颗粒污泥同时实现的可行性,以交替负荷的方法培养2个月后,富含聚磷菌的好氧颗粒污泥形成。
3.
This research focused on the enrichment of phosphorus accumulating organisms (PAO) and glycogen accumulating organisms (GAO) in enhanced biological phosphorus removal (EBPR) systems——SBR reactors fed with activated sludge.
以SBR反应器为载体,接种具有除磷功能的活性污泥后分别富集了强化生物除磷(EBPR)系统中的2个主要微生物种群聚磷菌(PAO)和聚糖菌(GAO)。
3)  phosphorus-accumulating bacteria
聚磷菌
1.
Biological phosphorus removal is a process that phosphorus-accumulating bacteria are utilized to absorb phosphorus excessively from the exterior environm.
生物除磷是指利用聚磷菌一类的微生物,在一定条件下过量地从外部环境摄取磷,并将磷以聚合的形态贮藏在茵体内,形成高磷污泥,通过排泥达到从污水除磷目的。
4)  PAOs
聚磷菌
1.
Review on the Factors Affecting the Enrichment Culture of PAOs and GAOs
聚磷菌和聚糖菌的竞争影响因素研究进展
2.
A study on the characteristics of phosphorus accumulating organisms(PAOs) in an anoxic tank of continues-flow two-sludge system was carried out using plate isolation method,physiological and biochemical experiments and phosphorus uptake experiment.
采用平板分离技术、生理生化及吸磷试验,对连续流双污泥系统缺氧池内的聚磷菌特性进行了研究。
3.
Based on the mature biochemical metabolic mechanisms of biological phosphorus removal,it is pointed out that denitrifying phosphorus removing bacteria(DPB) are a type of PAOs which exist extensively in some enhanced biological phosphorus removal(EBPR) processes,wit.
基于成熟的生物除磷生化代谢机理,指出反硝化除磷菌(DPB)是一种广泛存在于一些强化生物除磷(EBPR)工艺中的聚磷菌(PAOs),无需特殊培养;对于市政污水,EBPR工艺中出现的聚糖原菌(GAOs)一般不会成为聚磷菌(PAOs/DPB)的竞争者而严重影响系统的除磷功能。
5)  polyphosphate accumulating organisms
聚磷菌
1.
The updated progress in the research of polyphosphate accumulating organisms (PAOs) was introduced.
对强化生物除磷工艺的基本概念、外加碳源的作用、脱氮除磷的关系、环境影响参数进行了阐述,并介绍了聚磷菌菌群研究的最新进展。
2.
Because polyphosphate accumulating organisms can take up acetate and propionate in the wastewater,though a large amount of reactions the bacteria stored energy for uptake P exceedingly.
水体中存在过多的磷是造成水体富营养化的重要原因之一,聚磷菌(polyphosphate accumulating organ-isms)因为能过量吸收磷而倍受关注。
3.
Three intracellular polymers,poly-β-hydroxyalkanoate(PHA),glycogen and poly-metaphosphate,in the polyphosphate accumulating organisms(PAOs)play a very important role in vivo metabolism and growth,which also affect the treatment effect of the enhanced biological phosphorus removal systems.
PHA、糖原和多聚偏磷酸盐这三种多聚物在聚磷菌(PAOs)体内的代谢和生长有着很重要的作用,它们同时也影响污水处理强化生物除磷系统的处理效果,因此需要对胞内聚合物进行分析测定。
6)  phosphate accumulating bacteria
聚磷菌
1.
One strain of phosphate accumulating bacteria and one of thermopiles as parents were used to undertake protoplast fusion with PEG,from which two strains of heterozygote with hot-resistance and phosphate accumulating were selected.
该稳定的融合子具有嗜热和聚磷的双重遗传标记,可以作为研究基因重组的材料及高温生物除磷的生产菌株,对研究聚磷菌的聚磷机理和嗜热菌耐热机理,解决夏季污水处理曝气池发泡过多现象提供一定的依据。
2.
In this paper, the effect of heavy metals on the ability of phosphate accumulating bacteria purifying municipal sewage was studied by adding 4 kinds of solutions containing different contents of Cu~(2+), Zn~(2+), Cr~(6+), and Cd~(2+) to sewage.
在市政污水中添加4种不同种类不同浓度的重金属离子,研究了4种重金属离子对聚磷菌除磷率及对活性污泥去除市政污水化学需氧量(CODcr)的影响。
补充资料:高效磷乳油(40%)
CAS:121-75-5
分子式:C10H19O6PS2
分子质量:330.36
中文名称:马拉硫磷;马拉松;O,O-二甲基-S-[1,2-双(乙氧羰基)乙基]二硫代磷酸酯;高效磷乳油(40%);杀虫剂4049;马拉赛昂;O,O-二甲基-S-(1,2-二羰乙氧基乙基)二硫代磷酸酯

英文名称:Malathion Butanedioic acid, [(dimethoxyphosphinothioyl) thio]-, diethyl ester O,O-Dimethyl-S-(1,2-bisethoxycarbonyl-ethyl)dithiophosphate succinic acid, mercapto-, diethyl ester, s-ester with o,o-dimethylphosphorodith ((dimethoxyphosphinothioyl)thio)butanedioic acid diethyl ester 1,2-di(ethoxycarbonyl)ethyl o,o-dimethyl phosphorodithioate ai3-17034 american cyanamid 4,049 ((dimethoxyphosphinothioyl)thio)-butanedioic aci diethyl ester [(dimethoxyphosphinothioyl)thio]-butanedioic aci diethyl ester camathion

性质描述:浅黄色油状体。熔点2.85(-7℃),沸点156-157℃(93Pa),30℃时的蒸气压为0.53×10-2Pa,相对密度为1.2315(25/4℃),折光率为1.4985(25℃)。溶于乙醇;丙酮;苯;石油;植物油;氯仿;甲氯化碳。在水中的溶解度仅为0.0145%。对光稳定,对热稳定性差。在中性介质中稳定;在碱性介质中水解成硫化物钠盐和反丁烯二酸二乙酯;在酸性介质中水解成硫化物和α-硫醇基琥珀酸二乙酯。

生产方法:

由五硫化二磷和甲醇合成二甲基二硫代磷酸酯,然后与顺丁烯二酸二乙酯加成得到马拉硫磷。将顺丁烯二酸二乙酯(以100%计为380kg)投入1000L搪玻璃反应锅内搅拌,控制温度在45℃以下,投入350kg五硫化二磷。慢慢滴加甲醇,控制温度为48-55℃,约2h加完250kg甲醇。加毕,保持65-75℃反应8h。反应产生硫化氢和逸出甲醇蒸气,经冷凝器使甲醇回流,硫化氢则用碱液吸收。反这过程在负压下进行。反应完成后,冷却至40-50℃,静置分层使杂质沉淀。上层原油先后进行水洗;碱洗;水洗,然后在真空脱水锅进行脱水,在85℃以下(真空度93.3kPa)使原油中的水分蒸发1.5-2h,得马拉硫磷原油。

原料消耗定额:顺酐430kg/t;五硫化二磷470kg/t;乙醇420kg/t;甲醇390kg/t。


用途:马拉硫磷是高效低毒杀虫;杀螨剂,防治范围广。不仅用于稻;麦;棉,而且因毒性低;残效短,也用于蔬菜;果树;茶叶,以及仓库的防虫。主要防治稻飞虱;稻叶蝉;棉蚜;棉红蜘蛛;麦粘虫;豌豆象;大豆食心虫;果树红蜘蛛;蚜虫;粉蚧壳虫;巢蛾;蔬菜黄条跳;菜叶虫;茶树上的多种蚧类,以及蚊;蝇幼虫和臭虫等。
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
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