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wastewater     
相关语句
  废水
    THE MICROBIAL ECOLOGICAL STRUCTURE ANDPURIFICATION FUNCTION OF THE MULTI-STAGESBIOSYSTEM TREATING THE INDUSTRIAL WASTE WATER
    多级生物系统处理工业废水的微生物生态结构与功能
短句来源
    The Structure and Function of Microbial Popu lation ZE-1 for Decolouring Dyeing Wastewater
    ZE-1号印染废水脱色菌群结构与功能的研究
短句来源
    STUDY ON PAPER PULPING WASTEWATER TREATMENT BY EICHHORNIA CRASSPES AND ALTERNANTHERA PHIOXENOIDES
    凤眼莲与喜旱莲子草净化造纸废水的效果研究
短句来源
    SAFETY OF SINGLE CELL PROTIEN PRODUCED FROM PEANUT PROCESS WASTEWATER
    花生蛋白废水生产的单细胞蛋白安全性的实验研究
短句来源
    A Study on Zooplankton in the Wastewater Containing Silver.
    含银废水中浮游动物的调查研究
短句来源
更多       
  废水
    THE MICROBIAL ECOLOGICAL STRUCTURE ANDPURIFICATION FUNCTION OF THE MULTI-STAGESBIOSYSTEM TREATING THE INDUSTRIAL WASTE WATER
    多级生物系统处理工业废水的微生物生态结构与功能
短句来源
    The Structure and Function of Microbial Popu lation ZE-1 for Decolouring Dyeing Wastewater
    ZE-1号印染废水脱色菌群结构与功能的研究
短句来源
    STUDY ON PAPER PULPING WASTEWATER TREATMENT BY EICHHORNIA CRASSPES AND ALTERNANTHERA PHIOXENOIDES
    凤眼莲与喜旱莲子草净化造纸废水的效果研究
短句来源
    SAFETY OF SINGLE CELL PROTIEN PRODUCED FROM PEANUT PROCESS WASTEWATER
    花生蛋白废水生产的单细胞蛋白安全性的实验研究
短句来源
    A Study on Zooplankton in the Wastewater Containing Silver.
    含银废水中浮游动物的调查研究
短句来源
更多       
  污水
    STUDY ON BIODEGRADATION MECHANISM OF DDT IN SEWAGE SLUDGE OF WASTEWATER RESERVOIR
    DDT在污水库底泥中净化机理的研究
短句来源
    THE EFFECT OF WASTEWATER AND WATER TREATEDWITH THE SEWAGE LAND DISPOSAL SYSTEM ON FREQUENCYOF MICRONUCLEI OF TADPOLE ERYTHROCYTES OFTOAD, Bufo andrewsi
    污水污水土地处理系统中各种水质对华西蟾蜍蝌蚪红细胞微核率的影响
短句来源
    Mechanism of artificial wetland treatment of Pb and Cd containing wastewater
    人-工湿地处理重金属Pb、Cd污水的机理探讨
短句来源
    Detection of Nitrobacteria Populations in Wastewater of Biological Nitrification Stage by
    用PCR技术检测生物硝化池污水中硝化细菌(Nitrobacteria)的研究
短句来源
    Experimental Study on EM Enrichment Cultivation and Wastewater Degradation
    EM菌富集培养及降解污水试验研究
短句来源
更多       
  污水
    STUDY ON BIODEGRADATION MECHANISM OF DDT IN SEWAGE SLUDGE OF WASTEWATER RESERVOIR
    DDT在污水库底泥中净化机理的研究
短句来源
    THE EFFECT OF WASTEWATER AND WATER TREATEDWITH THE SEWAGE LAND DISPOSAL SYSTEM ON FREQUENCYOF MICRONUCLEI OF TADPOLE ERYTHROCYTES OFTOAD, Bufo andrewsi
    污水污水土地处理系统中各种水质对华西蟾蜍蝌蚪红细胞微核率的影响
短句来源
    Mechanism of artificial wetland treatment of Pb and Cd containing wastewater
    人-工湿地处理重金属Pb、Cd污水的机理探讨
短句来源
    Detection of Nitrobacteria Populations in Wastewater of Biological Nitrification Stage by
    用PCR技术检测生物硝化池污水中硝化细菌(Nitrobacteria)的研究
短句来源
    Experimental Study on EM Enrichment Cultivation and Wastewater Degradation
    EM菌富集培养及降解污水试验研究
短句来源
更多       

 

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      wastewater
    Activated carbon was prepared from the sewage sludge of municipal wastewater treatment plant by chemical activation (activation reagent is ZnCl2) and was used for the adsorption of dye (reactive brilliant red K-2BP).
          
    Geochemistry characteristics and evaluation of the pollution extent of arsenic in wastewater irrigated soil in the North of Tian
          
    The isolation and identification of high efficient biohydrogen production anaerobic bacteria are the important foundations for the fermented biohydrogen production process by anaerobic digesting organic wastewater.
          
    Development and application of some renovated technologies for municipal wastewater treatment in China
          
    Wastewater discharge, especially municipal wastewater discharge, and non-point pollution sources are becoming the major water pollution source and research focus.
          
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    39 strains of phenol-degrading yeasts were isolated from activated sludge and biological film in 7 wastewater treatment plants which contained phenol. All these strains can utilize phenol as the sole carbon source for growth, and remove phenol at 600 ppm more than 90% within 24 hours. They were identified as Candida tropiealis, TrieTiasporon cutaneum and Triehosporon eapitatum. Without being induced, the strain can have concentrations of phenol causing both maximum growth and phenol-resistant growth at...

    39 strains of phenol-degrading yeasts were isolated from activated sludge and biological film in 7 wastewater treatment plants which contained phenol. All these strains can utilize phenol as the sole carbon source for growth, and remove phenol at 600 ppm more than 90% within 24 hours. They were identified as Candida tropiealis, TrieTiasporon cutaneum and Triehosporon eapitatum. Without being induced, the strain can have concentrations of phenol causing both maximum growth and phenol-resistant growth at about 1000 Ppm and 1160 ppm for C. tropiealia; respectively within 24-48 hours about 800 ppm and 1000 ppm for T. cutaneum; and about 760 ppm and 1500 ppm for T'. eapitatum. The optimum temperature for growth on phenol is 30℃ for C. tropiealis; 26-30℃for T. cutaneum; and 26-36℃ for T. eapitatum. The optimum pH for three of them lies in the range of 4.8-7.0. The phenol-degrading yeasts show obviously inhibitive action on cyanide. The problem of dominant species of yeasts in the biological treatment of wastewater containing phenol was discussed.

    从7个含酚废水生化处理厂的活性污泥或生物膜中分离出39株降解苯酚的酵母,它们均能以苯酚作为生长的唯一碳源,24小时内可将500ppm的苯酚去除90%以上。经鉴定,39株酵母分别属于两属三个种:热带假丝酵母(Candida tropicalis),皮状丝孢酵母(Trichosporon cutaneum)和乳头状丝孢酵母(Trichosporon capitatum)。不经诱导,在44—48小时内,热带假丝酵母314号最高生长的酚浓度和耐酚浓度分别约为1000ppm和1150ppm;皮状丝孢酵母25号约为800ppm和1000ppm;乳头状丝孢酵母115号约为750ppm和1450PPm。三种酵母在苯酚中生长的最适温度依次为30℃、25—30℃和25—36℃。它们生长的最适pH范围均为4.8—7.0。氰化物对这三种酵母的生长有明显的抑制作用。对含酚废水生化处理过程中的优势酵母等向题进行了讨论。

    It is required that properties of organophosphorus (O. P.) pesticides in wastewater be studied in order to enhance its treatment efficiency and estimate the behaviour in environment. On the basis of their structure and biological toxicity, Fenitrothion, Parathion Methyl (Methyl Niran) andDimethoate were selected for particular study.

    通过对三种有机磷杀虫剂(杀螟松、甲基1605、乐果)废水生物处理模拟试验和微生物呼吸耗氧特性试验,表明三者均可被微生物降解;三者对未驯化活性污泥微生物的生长有一定抑制作用,但对驯化培养后的微生物菌群的生长、代谢有促进作用。有机磷杀虫剂的浓度,pH值,菌种培养条件等因素对微生物菌群的生态演替和有机物的去除效果都能产生影响。

    Based on results of simulation test, biodegradation patterns and their dynamic characteristics of petroleum hydrocarbons in soils of Shenyang-Fushun irrigation region are discussed in this paper. Results show that after mixing heavy diesel oil No. 20 with the tested soils, the amounts of which used correspond to a total oil quantity in wastewater containing 5 and 10 mg oil/1 in a growing season irrigating the paddy soils, saturated aliphatic and aromatic hydrocarbons in oil degrade to background values...

    Based on results of simulation test, biodegradation patterns and their dynamic characteristics of petroleum hydrocarbons in soils of Shenyang-Fushun irrigation region are discussed in this paper. Results show that after mixing heavy diesel oil No. 20 with the tested soils, the amounts of which used correspond to a total oil quantity in wastewater containing 5 and 10 mg oil/1 in a growing season irrigating the paddy soils, saturated aliphatic and aromatic hydrocarbons in oil degrade to background values of the corresponding at 70th day after culture. The cancer-inducing benzo (a) anthracene and other strong carcinogen benzo (a) pyrene can also degrade to a very low level within a relatively short period of time. Therefore, from the viewpoint of environmental biology, in a form of land treatment, paddy soils irrigated with wastewater containing 5 and 10 mg oil/1 will not tend to accumulate various components of hydrocarbons in soils. Biodegradation of hydrocarbons in soils is of a first order dynamic equation. Judging from t1/2 values, degradation rates of components of hydrocarbons show little difference between 5 and 10 mg oil/1, but increase markedly in case of 100 mg oil/1. Therefore, in land-treating process of oil waste regular addition of small amounts offers better results than with a large amount at a time. Degradation rate of other components of hydrocarbons decreases in following order: saturated aliphatic hydrocarbonswastewater, the oil content of which is higher than the irrigation standard, may not bring in harmful accumulation of hydrocarbons such as benzo (a) hyrene in soils and thus provide unprofitable effect to the soil-plant system within a relatively short time.

    本文根据模拟实验结果,论述了石油烃在沈抚灌区土壤中的生物学降解规律及其动力学特征.实验结果表明,用20号重柴油混入供试土壤后,于第70天石油烃中的烷烃和芳烃均已降解至该土壤的背景值范围.石油烃在土壤中的降解,符合一级反应动力学方程.

     
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