重庆酸沉降物对小学生肺通气功能影响的探讨

本文选择重庆市酸沉降物不同污染水平的三个地区,7～12岁小学生共计1081人,进行肺通气功能测定,共9项指标(FVC、FEV_1、FEV_1％、PEFR、MMEF、FVC％、V_(75)、V_(50)和V_(25))。结果发现10岁女小学生全部指标均显示出污染地区明显低于相对清洁区。尤以V_(50)和V_(25)更敏感(P<0.001)。本调查与攀枝花和辽宁两地区10岁女小学生部分肺通气功能进行比较,发现FVC、FEV_1和PEFR值重庆相对清洁区和污染区均比两地区低。特别是V_(50)和V_(25)的值低1～2倍。     

大气污染对儿童唾液溶菌酶含量的影响

本文分析了重庆市大气污染(SO_2、NO_x、TSP)的特征,报导重污染区儿童唾液溶菌酶含量明显低于相对污染区(P<0.00001),污染区儿童体内免疫功能下降;发现暴露于两种或两种以上因素(酸沉降物、被动吸烟、燃煤)时,对儿童唾液溶菌酶含量的影响远大于它们单一因素的作用(P<0.00001),经逐步回归分析,得Y=401.6869-68.1306X_5-42.3868X_1-20.8466X_4(r=0.7681,F值=185.08,P<0.00001);并针对重庆市大气污染的具体情况,提出一些有意义的建议措施。     

废干电池热解过程的物相变化研究——《废干电池无害化与资源化技术研究》第一报

章是已鉴定的广州市科技攻关项目《废干电池无害化与资源化技术研究》的第一报，该项目开发了热解-酸溶-同槽电解组合工艺。章简介废干电池回收的意义及回收工艺，重点论述废干电池在100-965℃范围内热解过程的物相变化规律，以及最适宜于酸溶提取废干电池锌锰元素的热解工艺条件。     

铝合金加工噪声污染防治的探讨

本文就铝合金加工点带来的噪声污染问题，从污染源分布特点，噪声的产生原因等方面作了论述，并提出了控制途径及治理办法的建议．     

碟式离心分离机在工业污水治理中的应用

本文重点介绍碟式离心分离机的工作原理、特点和控制油水分离效果的因素分析.     

水产品加工废水生物处理现状与展望

介绍了几种较为典型的水产品加工废水生物处理工艺,以及利用生物处理工艺处理高含盐量废水实验室研究结果;展望了水产品加工废水处理技术的发展前景。     

Effect of leachate recycling and inoculation on the biochemical characteristics of municipal refuse in landfill bioreactors

Activity development of key groups of enzymes involved in municipal refuse decomposition was measured in laboratory landfill bioreactors with and without leachate recycling and inoculation for about 210 days.The results showed that the enzymes(amylase,protease,cellulase,lipase and pectinase)were present in fresh refuse but at low values and positively affected by leachate recycling and refuse inoculation.The total average of cellulase activity in digesters D3 operated with leachate recycling but no inoculation,D4 and D5 operated with leachate recyling and inoculation was much higher than that in digesters D1 and D2 without leachate recycling and inoculation by 88%-127%,117%-162%and 64%-98%.The total average of protease activity was higher in digester D4 than that in digesters D1,D2,D3and D5 by 63%,39%,24%and 24%,respectively,and the positive effect of leachate recycling and inoculation on protease activity of landfilled refuse mainly was at the first two months.The total average of amylase activity was higher in digesters D3,D4 and D5 than that in digesters D1 and D2 by 83%-132%,96%-148%and 81%-129%.During the early phase of incubation,the stimulatory effect of inoculation on lipase activity was measured,but refuse moisture was the main factor affecting lipase activity of landfilled refuse.The inoculation,initial and continuous inoculation of microorganisms existing in leachate,was the mainly stimulatory factor affecting pectinase activity of landfilled refuse.     

胶束增溶分光光度法测定抗静电剂中无机磷

本文研究了CV—PMo离子缔合物在聚乙烯醇的增溶下，对抗静电剂中的无机磷进行测定，结果令人满意。     

莱州加大对废塑料加工企业整治力度

日前，莱州市环保局提请莱州市人民法院对拒不履行处罚决定的废旧塑料加工企业进行强制执行。据了解，莱州市现有的1000多家废旧塑料加工企业中，有相当一部分属于无证(照)经营。这些企业门店在生产、消防、卫生防疫等方面存在严重的安全隐患。为规范废旧塑料加工，减少因此带来的环境污染，莱州市采取了“整治内部、关闭外围”的措施。在加工企业集中的镇村成立了专门的园区，