中和混凝与催化氧化法处理高浓度有机废水

以CODCr3000－8000mg/L,色度900－2000倍,pH＜1的难生化降解的有机废水为水样,采用中和混凝沉淀与催化作用为主的组合工艺对其进行处理试验,着重研究了有关的工艺条件与CODCr去除率的关系。结果表明：只要严格控制中和pH及混凝剂投量和催化氧化的药剂投量、氧化pH和时间,可以获得CODCr去除率为95％－96％的良好效果,同时排放水质中pH、SS和色度均达到排放标准。     

生物接触氧化—混凝沉淀处理生活污水的试验研究

本文通过生产接触氧化－混凝沉淀处理生产污水的试验研究结果表明：本文法处理生活污水效果好，生化后污水混凝效果提高，处理后水质可达生产回用要求。对影响五物接触氧化效果的污水浓度，气水比，接触时间参数和不同混凝剂种类及投加量进行了条件选择试验，获得了处理效果随条件变化的曲线，最佳混凝及其最佳投加量。     

水解酸化─厌氧─好氧─混凝─吸附工艺处理洁霉素生产丁提高浓度有机废水

采用水解酸化 厌氧 好氧 混凝 吸附工艺处理洁霉素生产丁提高浓度有机废水，工程实践表明，ＣＯＤＣｒ和ＢＯＤ５去除率在９９％以上，所排废水各项指标达到国家排放标准。     

Removal natural organic matter in typical south-China source water during enhanced coagulation of a with IPF-PACl

Systematic investigation on enhancing removal of natural organic matter （NOM） using inorganic polymer flocculant （IPF）, polyaluminum chloride（PACI） and polyacrylamide（PAM） was performed in a typical south-China source water. Enhanced coagulation and applying polymer flocculant-aid were compared through jar tests and pilot tests. Raw water and settled water were characterized and fractionated by resin adsorption. The results show that DOC composes major part of TOC. The DOC distribution keeps relatively stable all around the year with typical high amounts of the hydrophilic matter around 50%. The distribution between HoB, HoA and HoN varies and undergoes fluctuation with the year round. During the summer season, the HoN becomes gradually the major part in hydrophobic parts. PACI with the species being tailor-made shows little pH effect during coagulation. The enhanced coagulation dosage for PACI could be 4.5 mg/L for the typical source water. The highest TOC removal achieved 31%. To be economically, 3 mg/L dose is the optimum dosage. Although hydrophilic fractions of NOM of both treatment strategies are removed about 30%, NOM causing UV254 absorbance were well removed（about 90%）. Hydrophobic bases and acids fractions are much more removed under enhanced conditions. The hydrophilic fraction could be better removed using PAM, the polymer coagulant aid.     

IPF混凝过程的定量计算模式(I):PCNM的应用

水处理过程IPF的混凝作用机理研究逐渐向半定量乃至定量化发展 .以典型IPF 颗粒物 水溶液体系的相互作用为例 ,对PCNM模式的应用从混凝剂的形态分布、投药量、pH以及其它影响因素加以研究讨论 .结果表明 ,经适当改进的PCNM能够较好地预测聚合铝的混凝特征 ,实验结果与模式预测值基本吻合 .对PCNM模式中存在的若干问题亦进行了详细讨论     

铝业含氟、沥青烟气净化回收研究及工程实践

应用沥青凝聚装置和静电回收净化技术 ,处理铝厂排出的含有氟、氟化物、沥青的烟气及粉尘 ,即能净化有害烟气又能回收有价值的工业原料。处理后的各项指标为 :粉尘排放浓度≤ 15 0mg/m3 ,沥青烟的排放浓度≤ 80mg/m3 ,氟化物的排放浓度≤ 11mg/m3 。     

治理含荧光渗透剂废水的研究

本文采用化学混凝法对含国外荧光渗透剂的有机废水进行了研究。结果表明：无机凝聚剂和有机絮凝剂配合使用，能够将废水中的ＣＯＤＣｒ从７５０ｍｇ／Ｌ降低至１００ｍｇ／Ｌ以下，且所用药品价廉易得。     

利用石灰乳协同处理焦化废水生物出水的研究

对投加石灰乳协同处理焦化废水生物出水的方法进行了全面的研究,在综合考虑经济性和去除效果的前提下,提出了反应的最佳条件.结果表明投加石灰乳协同处理后出水可达污水综合排放标准(GB8978-96)中二级排放标准,其处理成本相对较低,有可推广的价值.     

Morphology and electrical conductivity of PACS

Polyaluminium chlorides with sulfate ion(PACS) were prepared by using AlCl3· 6H2O, Al(SO4 )3· 18H2O and Na2CO3 as raw materials. The effects of basicity (r), Al3 +/SO42- molar ratio and aging time on the morphology of PACS were observed by transmission electrical microscope. The influence of aging time on charge neutralization and coagulation effect of PACS was studied.The effects of basicity (r), Al3+/SO42- molar ratio and aging time on the electrical conductivity of PACS solution were also investigated. The experimental results show that the degree of polymerization of polyaluminium chloride(PAC) increases when SO42-ion is added. The higher the basicity(r) and the longer the aging time, the larger the size of polymer PACS. The ability of PACS neutralizing the charge on Kaolinite decreases with the increase of aging time. The electrical conductivity of PACS solution (the concentration of Al3+ ion is 0.18 mol/L) with different aging time is the function of the basicity and Al3 +/SO42- molar ratios and has its maximum at r = 0.5 and Al3+/SO42- = 12.     

石灰在煤泥水混凝中的作用机理研究

石灰在煤泥水混凝中的作用机理：石灰对煤泥水的混凝作用不是补给了ＯＨ－，而是提供了大量的Ｃａ２＋，Ｃａ２＋通过压缩双电层，破坏了煤泥颗粒的稳定性从而使煤泥颗粒发生凝聚，ＯＨ－和Ｃａ（ＯＨ）２对煤泥水的混凝不直接起作用。