Effect of inorganic carbon on anaerobic ammonium oxidation enriched in sequencing batch reactor

The present lab-scale research reveals the enrichment of anaerobic ammonium oxidation microorganism from methanogenic anaerobic granular sludge and the effect of inorganic carbon(sodium bicarbonate)on anaerobic ammonium oxidation.The enrichment of anammox bacteria was carried out in a 7.0-L sequencing batch reactor(SBR)and the effect of bicarbonate on anammox was conducted in a 3.0-L SBR.Research results,especially the biomass,showed first signs of anammox activity after 54 d cultivation with synthetic w...     

紫外光催化氧化技术处理有机污染物的研究动态

主要介绍了北美先进的紫外光催化氧化技术对有机废水、废气的处理研究与应用，简要介绍三种类型光催化反应器的结构。该技术在国外处于研究阶段，预期应用前景很好，尤其适用于电力充沛地区有机废水、废气的处理，具有应用方便、处理效果好，投资费用低等特点。     

Modeling of organic pollutant destruction in a stirred-tank reactor by ozonation

ＩｎｔｒｏｄｕｃｔｉｏｎＢｅｃａｕｓｅｏｆｔｈｅｈｉｇｈｏｘｉｄａｔｉｏｎｐｏｔｅｎｔｉａｌｏｆｏｚｏｎｅ(Ｏ3) ,ｏｚｏｎａｔｉｏｎｈａｓｂｅｅｎｒｅｇａｒｄｅｄａｓａｐｒｏｍｉｓｉｎｇｍｅｔｈｏｄｆｏｒｄｒｉｎｋｉｎｇａｎｄｗａｓｔｅｗａｔｅｒｔｒｅａｔｍｅｎｔ.ＡｗｉｄｅｒａｎｇｅｏｆｏｒｇａｎｉｃｐｏｌｌｕｔａｎｔｓｉｎｗａｔｅｒｃａｎｂｅｄｅｇｒａｄｅｄｂｙＯ3,Ｏ3ｃｏｍｂｉｎｅｄｗｉｔｈＨ2 Ｏ2 ｏｒＵＶｌｉｇｈｔ,ｗｈｉｃｈａｒｅｋｎｏｗｎａｓＡｄｖａｎｃｅｄＣｈｅｍｉｃａｌＯｘｉｄａｔｉ…     

SBR法处理高浓度有机废水试验研究

采用序批式活性污泥法（SBR），对处理高浓度化工废水进行了实验研究，结果表明，温度是影响SBR法处理效果的一处重要因素，其次是pH值、曝气量和周期，并在一定条件下，可得到75％的CODcr去除率。     

镁砂窑的黑烟治理

本文介绍了乡镇镁砂工业的主干装备———镁砂窑轻烧镁砂由燃煤改燃煤气的新工艺、煤的气化原理及反应顺序、镁砂窑改变燃料的比较计算、简易煤气发生炉的构造和煤气燃烧用的空气量计算等，并对镁砂窑采用煤气燃烧工艺后所产生的综合效果，作了简单的评价     

厌氧—好氧生物滤池处理城镇污水的研究

厌氧－好氧高性能生物滤池是利用附着在塑料模块填料上的微生物系统对城镇污水中的污染物质进行降解处理。厌氧水解池和高负荷生物滤池采用的塑料模块填料具肮空隙率、高附着面积、高布水性能和抗堵塞的优异性能，使出无需回流。当厌氧水解池水力仪时间国４ｈ，生物滤澉水力负荷为３０ｍ＾３／（ｍ＾２．ｄ），城镇污水的ＣＯＤｃｒ去作率达７５％～８５％、ＢＯＤ５去除率达８５％、９５％，ＳＳ去除率达８５％～９０５％，处理后出     

微生物浓度对SFBR工艺去除营养物的影响

采用序半连续式反应器(SequentialFed-batchReactor,简称SFBR,下同。)就不同微生物初始浓度对人工配置废水营养物去除效率的影响进行了研究。探讨了微生物初始浓度对COD、氮化合物(NH4-N和NO3-N)除去和微生物生长的影响。结果表明,当微生物初始浓度为140.4g/L时,COD有最高除去率(69.5%)。当微生物初始浓度≥46.8g/L,总氮除去率可达100%。菌体初始浓度对废水中营养物的去除有利。过高浓度的微生物生长,受营养物和供氧的限制。用一组涉及多个微生物反应的动力学模型,分析了微生物初始浓度对同时去除碳、氮化合物效率和微生物生长的影响。     

Advanced nitrogen removal using pilot-scale SBR with intelligent control system built on three layer network

Since eutrophication has become increasingly severe in China, nitrogen and phosphorous have been the concern of wastewater treatment, especially nitrogen removal. The stabilization of the intelligent control system and nitrogen removal efficiency were investigated in a pilot-scale aerobic-anoxic sequencing batch reactor (SBR) with a treatment capacity of 60 m³/d. Characteristic points on the profiles of dissolved oxygen (DO), pH, and oxidation reduction potential (ORP) could exactly reflect the process of nitrification and denitrification. Using the intelligent control system not only could save energy, but also could achieve advanced nitrogen removal. Applying the control strategy water quality of the effluent could stably meet the national first discharge standard during experiment of 10 months. Even at low temperature (t = 13°C), chemical oxygen demand (COD) and total nitrogen (TN) in the effluent were under 50 and 5 mg/L, respectively. Translated from Acta Scientise Circumstantiae, 2006, 26(5): 745–750 [译自: 环境科学学报]     

Anaerobic digestion for waste water poultry manure by UBF reactor

ＡｎａｅｒｏｂｉｃｄｉｇｅｓｔｉｏｎｆｏｒｗａｓｔｅｗａｔｅｒｐｏｕｌｔｒｙｍａｎｕｒｅｂｙＵＢＦｒｅａｃｔｏｒＧｈａｎｅｍＩ．Ｉ．ＩｂｒａｈｉｍＡｇｒｉｃｕｌｔｕｒａｌＥｎｇｉｎｅｅｒｉｎｇＲｅｓｅａｒｃｈＩｎｓｔｉｔｕｔｅ，Ａｇｒｉｃｕｌｔｕｒ...     

厌氧-好氧填料床联合处理餐饮废水的研究

调查江苏省扬州市餐饮废水排放特征,开发出一种厌氧-好氧填料床联合反应器用于处理餐饮废水.通过试验确定上流式厌氧填料床水力停留时间为4h,当联合工艺的总水力停留时间为8h时,联合工艺对餐饮废水处理CODcr去除率达到了90%.出水中CODcr、NH3-N、SS、磷酸盐指标达到国家一级排放标准.