利用电厂粉煤灰输送与处置系统处理制浆造纸污水的研究

制浆造纸污水和电厂粉煤灰混合流体的静态与动态模拟沉降实验证实，其固液分离性能好，粉煤灰对污水中COD、酚、色度等污染物有去除作用。吸附渗透实验估算了粉煤灰、亚粘土对COD、酚的吸附量，取得了地下水影响预测参数。     

新生态MnO_2的制备及处理造纸废水的实验研究

实验制备并表征了XS - 1、XS - 2、XS - 3和XS - 4四种新生态MnO2 ,比较了它们对造纸废水的CODCr去除率和脱色率。结果表明 ,XS - 1和XS - 2样品的处理效果较好。选择XS - 1作为处理剂 ,研究了 pH值、投加量、温度等因素对处理效果的影响 ,并探讨了作用机理。当 pH值小于 1 .5、投加量为 50mg/ 1 0 0mL时 ,1 5℃下振荡 1h后 ,对CODCr为 3680mg/L、色度为 650倍的造纸废水的CODCr去除率达 60 % ,脱色率可达 91 %。     

汽车减震器壳体的制造新工艺

介绍了汽车减震器壳体的制造新工艺.用低碳钢电焊直缝管经滚边底部和焊接吊耳而成,可代替精铸底部和吊耳后焊接.介绍了滚边机的结构和工作过程.     

利用造纸废物生产全粉煤灰轻质建筑材料研究(Ⅰ)

根据外营力自然成岩理论 ,探讨了利用造纸废物与粉煤灰生产复合材料的新理论、新工艺。在工业性试生产中产生的制品具有容重轻、强度高 ,隔热性能和憎水性良好的优点 ;同时 ,由于其吃灰量大 ( >95 % ) ,又为大规模利用粉煤灰开辟了新途径。     

氯离子试纸的研制和应用

根据化学分析原理,经试验选择一定量的显色剂、酸度调节剂、稳定剂等,以层析纸为载体制成氯离子试纸,并对试纸的性能进行了试验,确定其使用方法和储存条件.通过对实际水样的测定,试纸法与国标法比较,结果基本符合,误差在半定量分析允许范围内.     

Reduction of Methane Released from Palm Oil Mill Lagoon in Malaysia and Its Countermeasures

Palm oil industry in Malaysia is one of the potential candidates for the CDM project because large amount of methane is emitted from the lagoons and open digesting tank of the wastewater treatment system. Therefore the first objective of the project is to investigate the actual GHG emission from the lagoons and open digesting tank in palm oil mills in order to establish the baseline for CDM project. Results indicated that methane contribution to biogas released from the open digesting tank and lagoon systems were 35% and 45%, respectively. These values are much lower than the reported value of 65% obtained by complete anaerobic condition of lab-scale experiments. Based on actual methane release measurement and information gathered from palm oil mill about wastewater treatment, significant amount of methane emission to the atmosphere can be reduced with the installation of new closed digesting tank system converted from the open digesting tank such as just by covering it with applying CDM. It is estimated that a total of RM2.6 million could be obtained from the selling of electricity generated from biogas generation and Certified Emission Reduction(CER). This revised version was published online in August 2006 with corrections to the Cover Date.     

再生纸厂的清洁生产方案的制定

文章以新世纪纸业公司再生纸厂为实例,充分调查了该厂的现有清洁生产措施,分析企业现有的清洁生产水平及水耗高的原因,在此基础上制定了一套清洁生产方案,结合企业的现有经济条件进行了可行性分析,筛选了现在可以实施的清洁生产方案和远期可以实施的清洁生产方案.     

EFFECT OF THE PAPER INDUSTRY ON WATER QUALITY OF THE LOWER FOX RIVER1

ABSTRACT: The Lower Fox River, Wisconsin, hosts the densest concentration of paper mills in the US., with 18 located along a 4Gde stretch between Lake Winnebago and Green Bay, Lake Michigan. Some of these companies use only primary, others also secondary, waste treatment techniques. Comparison of the quantities of wastes discharged with the legal limits indicates that all plants discharge only 40-50 percent or less of the allowable suspended solids; most discharge < 50 percent of the allowable BOD. This is equal or better than the performance of paper companies elsewhere in the state. Reductions in pollutant discharges have corresponded to improved water quality, though too much BOD is still discharged to be adequately assimilated by the Fox River. The relatively low current level of discharges means permit levels would have to be drastically cut to make any significant impact on water quality. Only a few companies might be seriously affected by such changes. Flow and temperature related permits would likely be more effective, but more difficult to comply with for the industry. Toxic substances are also a potential problem, particularly chlororganic compounds that can form in situ from the chlorine frequently used for pulp bleaching.     

Minimizing concentrated malodorous gases from a sulphate pulp mill by applying some risk analysis methods

The significance of accidental releases has increased during the past few years. The reason for this is that the level of continuous process emission has gone down, partly due to more stringent environmental regulations and partly due to technical improvements. The aim of the study was to minimize accidental releases from a sulphate pulp mill. Some well-known methods of risk analysis were used as a tool. This article presents the application of risk analysis to reduce accidental releases of concentrated malodorous gases from a sulphate pulp mill. This particular objective was chosen not only because of the inconvenience caused by the smell but also the possible health hazards which have been of growing concern recently. In this study, risk analysis has proved to be a recommendable tool in environmental protection of sulphate pulp mills. However, only thorough advance planning before analysis begins can guarantee the most efficient and beneficial results of risk analysis. The aim of the examination and the resources available have an effect on the selection of the method and also on the level of examination.     

粪大肠菌群快速测定法在城市地表水监测中的应用

选取苏州地表水体中具有代表性的22个点位采集水样，以纸片法和多管发酵法测定水中粪大肠菌群进行方法比对，达标情况相同，均为64.8％，阳性管率无显著性差异（X^2=0．18，P〉0．05），MPN值也无显著性差异（t=0．01，P〉0．05）。纸片法测定Ⅲ水功能区（t=0.04）较Ⅳ水功能区（t=0．18）效果更好。纸片法快速测定地表水中的粪大肠菌群在苏州地区是适用的。