中药材初加工废水处理工程设计与运行

针对亳州某产业园中白芍初加工废水,包括清洗废水和蒸煮脱皮废水,其中白芍清洗废水处理采用“旋流沉砂器+平流沉淀池”工艺,白芍蒸煮脱皮废水处理采用预处理和“UASB+A/O+混凝沉淀(保障工艺)”工艺,并考察其运行效果。结果表明:清洗废水经处理后出水水质可以达到清洗回用标准,使废水可循环再利用;蒸煮脱皮废水处理后达标排放,出水水质满足《中药类制药工业水污染排放标准》(GB21906-2008)中污染物最高允许排放浓度的一级标准。该废水处理工程运行稳定、出水达标,可为同类工程设计提供参考。     

活性污泥法处理污水厂污泥运行管理实践

介绍了活性污泥法污水处理厂污泥处理的运行管理情况,分析了污泥处理的因素和各个环节的操作要点,探索了适合于某地污水处理厂的污泥脱水各单元的优化条件。     

铜矿工业废水回用研究

江西某铜矿工业废水产生量大、成分复杂,Cu2+、Pb2+、Zn2+、Cd2+等重金属含量超标,对周围环境污染日益加剧,矿山废水治理与利用势在必行。文章对矿山工业废水直接回用进行了研究,废水的直接回用有着明显的经济效益和环境效益。     

中国化工和石化业近期发展现状与进展

中国化学品市场销售额现已位居世界第4，不久将超过德国而成为世界第三大化学品市场。“人世”以来，反倾销力度明显加大，化工园区建设速度正在加快，石化扩能开始走向经济规模，跨国公司全方位投资中国石化业，中国化工和石化业正在融入世界、走向世界。     

直流电絮凝法处理难降解印染废水研究

采用电絮凝法处理印染废水，验证了不同极板材料、废水pH值、电流密度、电解时间等因素对废水色度和CODCr去除效果的影响。实验结果表明，电絮凝法印染废水处理的最优工艺条件为：全铁极板、废水pH值10～11，电流密度200～250 A/m2，反应时间5～8 min。在此条件下色度去除率可达98%左右，CODCr去除率可达70%左右。     

Online monitoring and assessment of emerging risk in conventional industrial plants: possible way to implement integrated risk management approach and KPI’s

Existing methodologies and practices do not provide enough possibility for online monitoring and assessment of emerging risks occurring as a result of a change in technology, product, operating conditions, as well as in organization of activities in conventional industrial plants. Typical today’s off and online methods and corresponding software packages are used as risk assessment methods, while various risk aspects (such as: process risks, process equipment integrity risks, organizational risks, and health and environmental risks) are being assessed and treated independently. However, it is clear that risk assessment and making decisions in line with that has to be based on information collected from different (independent) sources in online mode. Also, the fact that additional risks in operations may occur due to unexpected changes in technology, accidents or unexpected process equipment degradation should be taken into account. When monitoring and process management systems are being designed and developed, only the process aspect and process risk are usually analyzed, while other risk aspects are not taken into account (like health and environmental risks). A new approach, to be presented in this paper, provides a possibility of online monitoring and assessment of risks (e.g. in petrochemical industry, power industry, etc.).     

区域供热节能新思路探究

本文基于河北省藁城市实际和供热需求,因地制宜,充分挖掘城区内可用资源,并采用新型热泵技术,合理利用。以现实分散的区域供热完成城市的集中供热。     

用氯仿萃取处理高浓度含酚废水的实验研究

用氯仿对含酚废水进行了萃取及反萃取实验，并研究了回收氯仿对废水萃取处理的效果以及多级萃取对萃取率的影响，得到的最佳萃取条件为：时间为20 min；废水与氯仿比例为1∶1；pH值为6，温度为室温（20℃左右）。此时萃取率为83.68%，氯仿的回收率为95%左右，通过三级萃取实验得到总的萃取率为95.54%。     

nd Foreign Pressure Vessel CodePAN

eveloping status and industry status,this paper proposes revising suggestion for the GB 150—1998 corresponding items.radiograph test;contrast;analysis0压力容器Pressure Vessel Technology63-66TH49C029C7C;C029_C7潘勇琨;60-63工程建设项目信息0压力容     

近年台湾省石化工业的发展及其与祖国大陆的关联

我国台湾省石化工业的发展是先从下游加工开始，在资金积累后再向中上游延伸。由于六轻计划实施，估计至1998年底，总炼油能力可达46Mt／a，乙烯生产能力为2．55Mt／a，已具有相当规模，部分产品也已具有国际竞争能力，台湾省内的市场过小，大部分产品销往亚洲市场，尤以祖国大陆为主，对祖国大陆市场的依赖性很大。自1997年7月以来，受东南亚经济危机影响，相关各国和地区货币汇率大幅贬值，台湾石化业倍受打击，影响发展。