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公开(公告)号：US07311841B2
公开(公告)日：2007-12-25
申请号：US10499108
申请日：2002-12-19
IPC分类号： C02F1/52
CPC分类号： C02F1/52 , C02F1/283 , C02F1/38 , C02F1/5281 , C02F2305/12
摘要： The invention concerns a water treatment method which consists in introducing coagulated water in a flocculation zone, to enable flocculation of microflocs in the presence and around a ballast; introducing the mixture in a decantation zone; separating the treated water in overflow and a mixture of sludge and the ballast in underflow; conveying at least part of said mixture to a sludge/ballast separating system and recycling into or upstream of the flocculation zone the ballast and part of the sludge introduced in said separation system. The invention is characterized in that it comprises steps which consists in conveying the mixture to the sludge/ballast separating system; in subjecting said mixture to a ballast concentration, extracting the ballast from the sludge extracted from the separation system; and more than 20% of the volume entering the sludge/ballast separating system is recycled into or upstream of the flocculation zone, after passing through at least part of the sludge/ballast separation system; and the ballast has an effective diameter greater than 60 micrometers, and the sludge extracted from the treatment system has a concentration higher than 5 g/L.
摘要翻译： 本发明涉及一种水处理方法，其包括在絮凝区域中引入凝结水，以使镇流器存在和周围能够使微团聚体絮凝; 将混合物引入滗析区; 在溢流中分离处理过的水和污泥和镇流器的混合物; 将至少部分所述混合物输送到污泥/镇流器分离系统，并将絮凝区和所述分离系统中引入的污泥的一部分再循环到絮凝区的上游。 本发明的特征在于它包括将混合物输送到污泥/镇流分离系统的步骤; 在对所述混合物进行镇流器浓度的同时，从分离系统中提取的污泥中提取镇流器; 并且在通过至少部分污泥/镇流器分离系统之后，进入污泥/镇流器分离系统的体积的20％以上再循环到絮凝区的上游或上游; 镇流器的有效直径大于60微米，从处理系统提取的污泥浓度高于5克/升。
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公开(公告)号：US06325933B1
公开(公告)日：2001-12-04
申请号：US09508637
申请日：2000-05-09
IPC分类号： C02F318
摘要： A process for biological purification of waste water by the activated sludge method wherein the waste water is continuously passed through one or more treatment zones and a clarification zone, wherein the waste water treated in the last treatment zone at the outlet from the zone under suitable control of aeration and stirring is continuously divided into a predominantly aqueous fraction and a sludge-containing fraction, and wherein a portion of the sludge fraction is recirculated and mixed with non-treated waste water, of which the former is subjected to clarification, and the latter is recirculated to the same or a preceding treatment zone.
摘要翻译： 一种通过活性污泥法生物净化废水的方法，其中废水连续通过一个或多个处理区和澄清区，其中在适当控制下从该区出口处的最后处理区处理的废水 通气和搅拌的工序连续分为主要含水部分和含污泥的馏分，其中一部分污泥馏分再循环并与未经处理的废水混合，前处理废水进行澄清，后者 再循环到相同或前一处理区。
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3.发明授权公开(公告)号：US06238562B1
公开(公告)日：2001-05-29
申请号：US09508641
申请日：2000-05-04
IPC分类号： C02F330
摘要： A process and an apparatus for biological purification of waste water by the activated sludge method, wherein the waste water is continuously passed through one or more treatment zones and a clarification zone in the same tank under such conditions that an accumulation of sludge occurs in the treatment zone from which the treated waste water is withdrawn, and wherein the direction of flow through the tank is reversed, so that the non-treated waste water, after accumulation of sludge has occured at the outlet end of the tank, in a succeeding period, is introduced at this end, and treated waste water is withdrawn at the opposite end.
摘要翻译： 一种通过活性污泥法生物净化废水的方法和装置，其中在处理中发生污泥堆积的条件下，废水连续通过同一罐中的一个或多个处理区和澄清区 处理废水从其中取出的区域，并且其中通过罐的流动方向相反，使得污泥积聚后的未经处理的废水在罐的出口端发生，在随后的时间段内， 在这一点被引入，处理后的废水在相对端被抽出。
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4.发明授权公开(公告)号：US07981297B2
公开(公告)日：2011-07-19
申请号：US12093524
申请日：2006-11-02
CPC分类号： C02F1/004 , B01D21/0012 , B03D3/02 , B03D3/06 , C02F1/28 , C02F1/32 , C02F1/44 , C02F1/52 , C02F2209/40 , C02F2303/04 , C02F2303/24 , C02F2305/12
摘要： A method for removing helminth egg and other suspended solids from a wastewater stream includes directing the wastewater to a ballasted flocculation system and adding a coagulation agent, flocculation agent and a ballast into the wastewater. Sludge is settled from the wastewater in a settling tank at a rate of at least 10 meters per hour. The method further includes removing helminth egg by filtering the effluent through a fine screen having a mesh diameter of approximately 5 micrometers to approximately 25 micrometers. After passing through the fine screen, the filtered effluent has less than one helminth egg per liter.
摘要翻译： 用于从废水流中除去蠕虫卵和其它悬浮固体的方法包括将废水引导至压载絮凝体系，并向废水中加入凝结剂，絮凝剂和镇流剂。 污泥在沉淀池中的废水中以至少10米/小时的速率沉降。 该方法还包括通过筛网具有大约5微米到大约25微米的精细筛网来去除蠕虫卵。 经过细筛后，过滤的流出物每升不超过一只蠕虫卵。
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5.发明申请Wastewater Treatment Method Comprising Decantation and Fine Screening Stages and Device for Carrying Out Said Method 有权污水处理方法，包括滗析和筛选阶段和执行所述方法的装置公开(公告)号：US20080296228A1
公开(公告)日：2008-12-04
申请号：US12093524
申请日：2006-11-02
CPC分类号： C02F1/004 , B01D21/0012 , B03D3/02 , B03D3/06 , C02F1/28 , C02F1/32 , C02F1/44 , C02F1/52 , C02F2209/40 , C02F2303/04 , C02F2303/24 , C02F2305/12
摘要： A method for removing helminth egg and other suspended solids from a wastewater stream includes directing the wastewater to a ballasted flocculation system and adding a coagulation agent, flocculation agent and a ballast into the wastewater. Sludge is settled from the wastewater in a settling tank at a rate of at least 10 meters per hour. The method further includes removing helminth egg by filtering the effluent through a fine screen having a mesh diameter of approximately 5 micrometers to approximately 25 micrometers. After passing through the fine screen, the filtered effluent has less than one helminth egg per liter.
摘要翻译： 用于从废水流中除去蠕虫卵和其它悬浮固体的方法包括将废水引导至压载絮凝体系，并向废水中加入凝结剂，絮凝剂和镇流剂。 污泥在沉淀池中的废水中以至少10米/小时的速率沉降。 该方法还包括通过筛网具有大约5微米到大约25微米的精细筛网来去除蠕虫卵。 经过细筛后，过滤的流出物每升不超过一只蠕虫卵。
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