化学实验室常见废液处理的探讨   总被引：15，自引：0，他引：15  

张长水  张立敏  王洁新 《河南科技大学学报(农学版)》2001,21(3):197-198,203

对化学实验室常见废液进行科学分类，根据它们的不同性质提出了相应的处理方法，并对实验中得以应用，使化学实验室废液的排放标准达到国标规定，增强了学生的环保意识和实验操作技能。  相似文献   

肉类屠宰加工企业废水处理     

易志霞  卢玉胜  孙奎  汪新娥 《信阳农业高等专科学校学报》2003,13(4):17-19

介绍肉类加工企业废水的性质 ,探讨并提出该类废水的处理方法。结果表明 :该类废水在进行预处理的前提下 ,采用以生物法为主的处理工艺 ,能达到治理污染的效果  相似文献   

电选法回收废印刷线路板中金属Cu的研究     

马俊伟  王真真  李金惠 《勤云标准版测试》2006,14(9):1895-1900

采用破碎机和高压电选机对废印刷线路板中金属Cu进行回收.结果表明,破碎产物粒度<0.9mm时金属的单体解离度较高,可以作为分选的原料.物料在电选过程中的动力学分析表明,影响电选效果的主要因素为电极电压、滚筒转速、电晕电极距及物料粒度.经正交实验优化影响参数后,-0.9+0.074mm粒级的破碎产物一次电选所得精料中Cu的富集情况较好,Cu品位由32.0%富集到63.6%,回收率为78.7%.  相似文献   

生物过滤器在农业臭气处理中的应用   总被引：1，自引：0，他引：1  

倪娒娣  崔绍荣 《农机化研究》2005,(3):221-223

针对当前集约化养殖引起的环境污染问题,提出用生物过滤器处理农业臭气。介绍了欧美国家用生物过滤器处理废气的发展情况及用前景;概述了生物过滤器处理废气的机理、流程和主要设备;讨论了生物过滤器在处理废气方面的发展趋势,特别是在农业生产方面的发展趋势。  相似文献   

Different combinations of protein ingredients in carp diets for reducing phosphorus loading     

Parveen  JAHAN  Takeshi  WATANABE  Shuichi  SATOH  Viswanath  KIRON 《Fisheries Science》2002,68(3):595-602

ABSTRACT: This study was conducted to gather data on the reduction of environmental phosphorus (P) loading through the formulation of carp diets with different combinations of protein ingredients. Five experimental diets were formulated by substituting fishmeal (FM; 10–20%) with alternative protein sources such as meat meal (MM; 5–15%), blood meal (BM; 5–7%), and defatted soybean meal (dSBM; 6–10%). The control diet used was a commercial carp diet selected based on earlier experiments. Each diet was fed to duplicate groups of juvenile carp three times a day, until satiation for 12 weeks. Feed performance was proportional to the increase in dietary FM levels. Phosphorus absorption ranged between 41.6% and 52.0% among the experimental groups and was 42.6% for the control group, but there were no marked differences in nitrogen (N) absorption rates. Phosphorus retention ranged from 31.4% to 35.7% for the test diets, whereas N retention increased proportionally with dietary FM levels and ranged from 34.7% to 41.7%. The P and N retention values of the control diet were 27.6% and 41.2%, respectively. The total P loading (T-P) increased at the higher FM levels (9.1–10.7 kg/t production), whereas lower FM levels produced higher total N loading (T-N, 34.6–43.1 kg/t production), the figures for the control being 13.9 T-P kg/t production and 35.6 T-N kg/t production. These results indicate that the reduction of FM levels to 10–20% by replacing it with MM, BM, and dSBM in carp diets was effective in reducing the loading of P and N.  相似文献   

Analysing the Rockmass Permeation of a Low-medium Radioactive Waste Disposal Field     

WANG Qing-hai~ 《保鲜与加工》2003,(12):133-137

The fractures distribution and fracture rock mass permeation research is the premise condition that to study groundwater movement and pollutant migration in fracture rock mass in bed rock area, which includes the dominance orientation of fracture that groundwater fluxes in it, the brisk zone distribution of fracture water and the permeability calculation of rock mass. This paper mainly analyzes the fracture distribution and the dominance orientation of fracture and the permeability of a low-medium radioactive waste disposal field based on its rich geologic record. The following results are found through Statistical analysis and comparison calculation.The active zone of fractural water in bed rock is an active channel of active nucleus migration. Tthe headrace fracture of disposition have a dominant orientation. The penetrating coefficient tensor in bed rock fracture is also calculated.  相似文献   

农村沼气-秸秆气-太阳能"三能合一"综合运行模式探讨——以天津市邦均镇示范工程为例   总被引：1，自引：0，他引：1  

张克强  黄治平  王风  王斌  孟庆海  杨鹏  李军幸  于丹 《中国农学通报》2007,23(11):420-423

介绍了农村沼气-秸秆气-太阳能"三能合一"综合运行模式,以邦均镇为例对"三能合一"模式进行了经济、生态和社会效益分析。分析表明,"三能合一"综合运行模式可以改善农村环境卫生状况,还能生产可再生能源,同时沼渣和沼液可以作为优质有机肥循环利用,该模式的技术和产品还可商业化,能取得良好的经济、生态和社会效益。  相似文献   

Analysis on the Disposal of the Industrial Solid Waste in the Three Gorges Region     

CUI Zhi qiang  WANG Li ao  HUANG Ben sheng  YUAN Hui 《保鲜与加工》2003,(5):94-98

The second step of water storage for Three Gorges Reservoir will be executed in Jue,2003. Because there is still a large quantity of industrial solid waste(ISW) dumped on the reservoir bottom where should be cleaned before water storage and wastes should be disposed. After a full investigation and analyze, the total amount of ISW in the Chongqing reservoir area is about 1.66 million tons. According the principles of safe, economical and reliable, this paper describes the ISW's treatment. The ordinary ISW which is harmless and non toxic after identification should be treated on-site, the ISW that exceeds the national standards should be removed and be disposed in the landfill, and the hazardous waste should be removed for disposition or storage.  相似文献   

Fuzzy Assessment of MSW Disposal Technologies     

LIU Yuan -yuan  WANG Liao  HUANG Chuan  LIN Jian -wei 《保鲜与加工》2002,(7):111-114

Three disposal technologies have their own advantages, and meanwhile disadvantages. Facing a special case, it is difficult to choose a proper one. By integrated analysis to three main technologies, a relatively integrated index system is established. Then by means of fuzzy mathematics (quantify and synthetically analyze the index system, make it unitary) ,a final general assessing model is founded. Finally, the paper takes a planning MSW(municipal solid waste) plant as an example, uses a two-level fuzzy assessment model with three groups of assessing factors,which include economical, environmeutal and the other factors, and concludes that composting is the most appropriate choice.  相似文献   

Improved Analytic Hierarchy Process Used in Optimal Selection of Waste Water Treatment Process     

LUO Gu-yuan  FENG Jie  JI Tie-jun 《保鲜与加工》2007,(4):44-48

The improved Analytic Hierarchy Process is adopted for the optimal decision of waste water treatment process. The unified test of traditional method is avoided owing to using the three scale method and inducting the optimum transfer matrix and then converting into the unified judgement matrix. It is proven by example that it is feasible to use the improved Analytic Hierarchy Process in the optimal decision of the waste water treatment process.  相似文献