BT－1净水剂在活性印染废水处理中的应用

本文探讨了ＢＴ－１净水剂在活性印染废水处理中的应用条件、脱色率、ＣＯＤ脱除率及ＰＶＡ脱除率。实验表明它是一种高效印染废水处理剂，具有推广价值。     

针织厂漂染废水的治理

针织厂漂染废水的治理厦门针织厂属国有小型企业,漂染废水的排放量为５００～７００ｍ３／ｄ。废水采用混凝气浮法处理,出水排入城市污水处理厂进行二级处理。该厂漂染废水处理设施于１９８９年１２月建成。废水处理设备安置在楼内,其中调节池、中间池和水泵皆设置在地...     

贵金属多元素分析进展

近年来,贵金属多元素精确分析在科研与工业界已引起广泛关注。本文就国内外贵金属分析常用的试样分解方法、分离富集方法与现代仪器分析技术进行总结和评述,并对未来发展的趋势进行了展望。     

活性污泥-接触氧化法处理印染废水

采用活性污泥 接触氧化法处理印染废水 ,取得了满意效果。在低温季节半年多的工程运行中 ,进水平均CODCr浓度为 5 67± 40 0mg L ,平均色度为 416± 3 7 1倍时 ,出水平均CODCr浓度 79 7± 6 0mg L ,去除率为 84 1± 1 7% ;平均色度 5 2 8± 4 0倍 ,去除率为 85 2± 1 3 % (置信度为 95 % )。处理成本低 ,仅为 0 79元 m3,污泥产量小 ,管理方便     

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。     

新型臭氧发生法处理印染废水的研究

高频陶瓷沿面放电臭氧生成新技术应用于印染废水的处理，经高浓度臭氧处理后的印染废水，ＣＯＤｃｒ去除率达８６．６％，脱色率达９８．４％，基本成为无色无味的中性水，本试验研究了用这一臭氧发生新技术治理印染废水的反应 ，并为实际应用提供了基础数据。     

改革生产工艺,控制煮练工序的污染

针对煮练废水含高浓度有机物，高浓度碱，污染严重的现状，提出用液氨活化代替精练工序，用可被生物降解的洗涤剂代替不易被生物降解的洗涤剂，煮漂一浴法，筒子纱煮练，清水煮练及套用脚水等工艺，改革控制煮练工序的污染。     

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     

依靠技术进步解决印染行业水污染问题

2007年6月，国务院出台了《节能减排综合性工作方案》，全面部署了各行业节能减排工作，在该方案中，纺织工业虽然不属于高耗能，高污染行业，但是已被列为落实节能，节水技术政策大纲的重点行业之一。印染行业水污染问题已引起了全社会的关注。[编者按]