水解＋射流曝气＋煤渣吸附工艺处理酱油废水

本文介绍了水解酸化 射流曝气 煤渣吸附工艺处理酱油废水的运行状况。     

选煤厂煤泥水澄清处理技术研究进展

煤泥水是选煤过程重要的工作介质．同时也是煤炭湿法加工过程产生的工业废水。煤泥水外排会严重破坏矿区生态环境,因此必须澄清处理后循环使用。分别从处理工艺、絮凝药剂和系统控制三个方面综述了国内外煤泥水处理相关技术研究进展,并总结了目前存在的问题,提出了一些建议。     

混凝沉淀-水解酸化-生物吸附-UBF-接触氧化-氧化沟-吸附工艺处理聚醚多元醇废水

对聚醚多元醇废水采用混凝沉淀-水解酸化-生物吸附-UBF-接触氧化-氧化沟-吸附等进行连续处理.结果表明,该处理工艺具有废水处理效果好、出水水质稳定(出水水质达GB8978-1996中的一级标准)、操作管理方便等优点,是处理该类化工废水的有效方法之一.     

厌氧-好氧处理变性淀粉生产废水

南开大学膜分离技术研究中心将膨胀颗粒污泥床(EGSP)处理工艺与活性污泥好氧处理工艺相结合，处理天津顶峰淀粉厂变性淀粉生产废水。该厂     

不同草种在粉煤灰基质上生长特性的研究

通过试验，研究了粉煤灰作草坪基质时，几种常用草坪草在粉煤灰上正常出苗生长的情况，为进一步结合粉煤灰的性质和特点，进行草坪及绿化植物生长基质选配，优选最佳基质配比，制成草坪及绿化植物的种植土并进行草坪生产与应用等提供了参考依据。     

Abatement of waste gases and water during the processes of semiconductor fabrication

The purpose of this article is to examine the methods and equipment for abating waste gases and water produced during the manufacture of semiconductor materials and devices. Three separating methods and equipment are used to control three different groups of electronic wastes. The first group includes arsine and phosphine emitted during the processes of semiconductor materials manufacture. The abatement procedure for this group of pollutants consists of adding iodates, cupric and manganese salts to a multiple shower tower ( MST ) structure. The second group includes pollutants containing arsenic, phosphorus, HF, HCI, NO2, and SO3 emitted during the manufacture of semiconductor materials and devices. The abatement procedure involves mixing oxidants and bases in an oval column with a separator in the middle. The third group consists of the ions of As, P and heavy metals contained in the waste water. The abatement procedure includes adding CaCO3 and ferric salts in a flocculation-sedimentation compact device equipment. Test results showed that all waste gases and water after the abatement orocedures oresented in this article passed the discharge standards set by the State Environmental Protection Administration of China.     

BSBR工艺处理生活污水的试验研究

BSBR是将SBR法和接触氧化法相结合的一种新型生物膜法处理工艺，它集SBR与接触氧化法两者优点于一身，对废水有较好的处理效果。以BOD5、NH3-N为指标，以曝气时间和pH值为变量，确定BSBR工艺处理生活污水的最佳曝气时间为4h，最佳DH值为7．5。实验结果显示，在最佳运行条件下，4hBOD5去除率达66．09％，NH3-N的去除率达36．43％，去除NH3-N的能力明显优于生物接触氧化法，出水的各项指标达到GB8978—1996的排放要求，为高效、低耗处理生活污水提供了新的途径。     

Effect of bio-surfactant on municipal solid waste composting process

Bio-surfactant is a new type of surfactant that is produced in microbial metabolism. Adding bio-surfactant during composting process, especially to those contain some toxic substances, has been proved to be a promising way. In this study, Strains Ⅲ(2), a bacterial with high activity to produce bio-surfactant, were isolated firstly. Following comparison experiments with and without adding Strains Ⅲ(2), namely Run 1 and Run R, were conducted, respectively. The experimental results showed that, by adding Strains Ⅲ (2),the surface tension could reduce from 46.5 mN/m to 39.8 mN/m and the corresponding time to maintain the surface tension under 50 mN/m could prolong from 60 h to 90 h. The oxygen uptake rate and total accumulated oxygen consumption with Stains Ⅲ (2) were both higher than those without Strains Ⅲ (2), while the accumulation of H2S in outlet gas was reduced to around 50% of Run R. Moreover, two additional experiments were also carried out to examine the effects of strains coming from different systems. One is adding Strains Ⅲ (2)with a dose of 0.4% (Run 2), and the other is seedling commercial Strains at the same conditions, the composting experiments showed that: Run 2 was more effective than Run 3, because the commercial Strains can be suppressed significantly in a complex composting system with different pH, high temperature and some of metals. The bio-surfactant was also added into the solid waste, which contained some toxic substances, the corresponding results showed that the remove rate of Hg and sodium pentachlorophenolate(PCP-Na) could be improved highly. Thus, the microenvironment, reactionrate and composting quality could be enhanced effectively by adding bio-surfactant to the composting process.     

用DWZ接触氧化处理工艺处理屠宰废水

实行畜禽定点屠宰后，含有大量有机污染物的畜禽屠宰废水的处理问题急需解决，经浙江省海宁市某畜禽屠宰厂运行证实，采用DWZ接触氧化处理工艺，具有投资少，占地面积小，处理效果好，抗冲击能力强，操作简便，运行费用低等特点，废水经处理后可达到GB8978－1996 Ⅰ级排放标准，得到了社会各界的广泛好评，本文主要介绍了该处理设施的处理工艺，运行特点及优越性，提供一条治理畜禽宰废水的有效途径。     

稀土铁冶炼高炉煤气洗涤水的处理

稀土铁冶炼高炉煤气洗涤水除含有普铁冶炼高炉煤气洗涤水中的各种物质外,还含有氟化物、铅、锌、稀土元素及放射性物质的化合物。白云鄂博铁矿含稀土氧化物、磷的氧化物以及氟化物等都比国内其它铁矿较高。尽管经