Circular secondary clarifier for wastewater treatment and an improved solids-liquid separation process thereof
    1.
    发明授权
    Circular secondary clarifier for wastewater treatment and an improved solids-liquid separation process thereof 有权
    用于废水处理的循环二次澄清池及其改进的固液分离方法

    公开(公告)号:US07637379B2

    公开(公告)日:2009-12-29

    申请号:US11935525

    申请日:2007-11-06

    Abstract: The improved circular secondary clarifier of the present invention requires less surface area and low HRT and provides efficient solids-liquid separation. The improved clarifier has better SS and BOD reduction and provides high under flow solids concentrations, as compared to conventional secondary clarifiers. The improved clarifier is even capable of treating wastewaters containing low MLSS concentration. One of the biggest advantages of improved clarifier is that it does not require a separate sump cum pump house as it removes the settled sludge using suction mechanism thereby reduces capital and recurring cost. Further, it provides natural flocculation, which is essential for agglomeration of solids and increases particle size referred to as ‘floc’ and eliminates provision for a separate flocculation facility thereby reduces capital and recurring costs.

    Abstract translation: 本发明的改进的圆形二级澄清器需要更少的表面积和低HRT,并提供有效的固体 - 液体分离。 与传统的次级澄清池相比,改进的澄清池具有更好的SS和BOD降低,并提供高流动固体浓度。 改进的澄清器甚至能够处理含有低MLSS浓度的废水。 改进澄清池最大的优点之一是,它不需要单独的油底壳泵房,因为它使用抽吸机构去除沉淀的污泥,从而降低资金和循环成本。 此外,它提供天然的絮凝,这对于固体的附聚和增加被称为“絮凝物”的粒度是必不可少的,并且消除了单独的絮凝设备的提供,从而降低了资本和经常性成本。

    CIRCULAR SECONDARY CLARIFIER FOR WASTEWATER TREATMENT AND AN IMPROVED S0LIDS-LIQUID SEPARATION PROCESS THEREOF
    2.
    发明申请
    CIRCULAR SECONDARY CLARIFIER FOR WASTEWATER TREATMENT AND AN IMPROVED S0LIDS-LIQUID SEPARATION PROCESS THEREOF 有权
    用于废水处理的循环二次澄清器及其改进的液体 - 液体分离方法

    公开(公告)号:US20080135473A1

    公开(公告)日:2008-06-12

    申请号:US11935525

    申请日:2007-11-06

    Abstract: The improved circular secondary clarifier of the present invention requires less surface area and low HRT and provides efficient solids-liquid separation. The improved clarifier has better SS and BOD reduction and provides high under flow solids concentrations, as compared to conventional secondary clarifiers. The improved clarifier is even capable of treating wastewaters containing low MLSS concentration. One of the biggest advantages of improved clarifier is that it does not require a separate sump cum pump house as it removes the settled sludge using suction mechanism thereby reduces capital and recurring cost. Further, it provides natural flocculation, which is essential for agglomeration of solids and increases particle size referred to as ‘floc’ and eliminates provision for a separate flocculation facility thereby reduces capital and recurring costs.

    Abstract translation: 本发明的改进的圆形二级澄清器需要更少的表面积和低HRT,并提供有效的固体 - 液体分离。 与传统的次级澄清池相比,改进的澄清池具有更好的SS和BOD降低,并提供高流动固体浓度。 改进的澄清器甚至能够处理含有低MLSS浓度的废水。 改进澄清池最大的优点之一是,它不需要单独的油底壳泵房,因为它使用抽吸机构去除沉淀的污泥,从而降低资金和循环成本。 此外,它提供天然的絮凝,这对于固体的附聚和增加被称为“絮凝物”的粒度是必不可少的,并且消除了单独的絮凝设备的提供,从而降低了资本和经常性成本。

    Surface-Modified Zeolite and Process for Synthesis Thereof for Sequestration of Anions
    3.
    发明申请
    Surface-Modified Zeolite and Process for Synthesis Thereof for Sequestration of Anions 有权
    表面改性沸石及其合成方法用于阴离子螯合

    公开(公告)号:US20070210006A1

    公开(公告)日:2007-09-13

    申请号:US11466636

    申请日:2006-08-23

    Abstract: Present invention deals with cost-effective surface-modified zeolite materials developed from commercial zeolites and flyash-based zeolites by treating with surface modifiers like hexadecyltrimethyl ammonium bromide (HDTMA-Br). The formation of zeolitic materials with anionic characteristics requires treatment with a surfactant with initial concentrations greater than its critical micelle concentration (CMC). The sorption of oxyanions on the surfactant-modified zeolite (SMZ) is attributed to surface complexation and surface precipitation. Incorporation of metal ions on SMZ showed improved anion uptake for dearsenification of water due to synergistic effects and is able to meet the stringent target of 10 ppb of As on potable water being adopted by most countries. High selectivity, faster kinetics and high adsorption capacity ensures cost effectiveness of this product as compared to other low-cost products for dearsenification. Zeolite analogues with anionic characteristics have been developed for their applications for removal of arsenic from water. The material developed can also be used to remove other anions like chromium and selenium.

    Abstract translation: 本发明涉及通过用诸如十六烷基三甲基溴化铵(HDTMA-Br)的表面改性剂处理从商业沸石和飞灰基沸石开发的经济有效的表面改性沸石材料。 具有阴离子特性的沸石材料的形成需要用初始浓度大于其临界胶束浓度(CMC)的表面活性剂进行处理。 氧杂阴离子对表面活性剂改性沸石(SMZ)的吸附归因于表面络合和表面沉淀。 金属离子在SMZ上的结合表现出改善的阴离子吸收,由于协同作用而使水脱水,并且能够达到大部分国家所采用的10 ppb As对饮用水的严格目标。 与其他低成本脱砷产品相比,高选择性,更快的动力学和高吸附能力确保了该产品的成本效益。 已经开发了具有阴离子特性的沸石类似物用于从水中除去砷的应用。 开发的材料也可用于除去其他阴离子如铬和硒。

    METHOD FOR THE SCREENING OF BACTERIAL ISOLATES
    5.
    发明申请
    METHOD FOR THE SCREENING OF BACTERIAL ISOLATES 审中-公开
    用于筛选细菌分离物的方法

    公开(公告)号:US20110086343A1

    公开(公告)日:2011-04-14

    申请号:US12282376

    申请日:2007-01-22

    CPC classification number: C12Q1/689

    Abstract: Present invention relates to a method to determine the genotype of organisms by RAPD analysis and more specifically, to establish the relatedness of individual organisms across and within species. RAPD uses genotypic information of an organism to give an organism specific DNA fragment of different sizes. The present invention provide methods and a set of oligonucleotide primers for performing amplification and other enzymatic reactions on nucleic acid molecules that have been collected directly as environmental DNA or DNA derived form pure isolates. More specifically, the present invention relates to a novel method of genetic analysis using a set of sub-sequence, which occurs as inverted repeats in different genome with different frequencies. All bacterial cultures used in this study have been isolated from activated biomass collected from effluent treatment plants. The bacteria have been sub-cultured repeatedly to obtain pure cultures. All plating has been carried out on Luria Broth plates with 2% agar. The 16S rRNA gene has been amplified using universal primers to confirm the eubacterial nature of the isolates. The primers used to amplify a 1466-bp product were 27F forward primer 5′-AGAGTTTGATCMTGGCTCAG-3′ and 1492 reverse primer 5′-TACGGYTAC-CTTGTTACGACTT-Hence, in defined conditions two genome samples could be differentiated from each other. These features are applicable to DNA fingerprinting, marker assisted selection, genotyping, and high throughput laboratory screening methods for culturable microbes from any environmental niche.

    Abstract translation: 本发明涉及通过RAPD分析确定生物基因型的方法,更具体地说,涉及确定物种内部和内部的个体生物的相关性。 RAPD使用生物体的基因型信息来产生不同大小的生物体特异性DNA片段。 本发明提供了用于对直接作为环境DNA或衍生自纯分离物的DNA直接收集的核酸分子进行扩增和其它酶反应的方法和一组寡核苷酸引物。 更具体地,本发明涉及使用一组亚序列进行遗传分析的新方法,其在不同基因组中以不同频率发生为反向重复。 本研究中使用的所有细菌培养物均从流出物处理厂收集的活性生物质中分离出来。 细菌已反复培养,获得纯培养。 所有电镀均在含有2%琼脂的Luria肉汤板上进行。 已经使用通用引物扩增了16S rRNA基因,以确认分离株的真菌性质。 用于扩增1466bp产物的引物是27F正向引物5'-AGAGTTTGATCMTGGCTCAG-3'和1492反向引物5'-TACGGYTAC-CTTGTTACGACTT-因此,在确定的条件下,两个基因组样品可以彼此分化。 这些特征适用于来自任何环境利基的可培养微生物的DNA指纹图谱,标记辅助选择,基因分型和高通量实验室筛选方法。

    Surface-modified zeolite and process for synthesis thereof for sequestration of anions
    7.
    发明授权
    Surface-modified zeolite and process for synthesis thereof for sequestration of anions 有权
    表面改性沸石及其用于螯合阴离子的方法

    公开(公告)号:US07510659B2

    公开(公告)日:2009-03-31

    申请号:US11466636

    申请日:2006-08-23

    Abstract: Present invention deals with cost-effective surface-modified zeolite materials developed from commercial zeolites and flyash-based zeolites by treating with surface modifiers like hexadecyltrimethyl ammonium bromide (HDTMA-Br). The formation of zeolitic materials with anionic characteristics requires treatment with a surfactant with initial concentrations greater than its critical micelle concentration (CMC). The sorption of oxyanions on the surfactant-modified zeolite (SMZ) is attributed to surface complexation and surface precipitation. Incorporation of metal ions on SMZ showed improved anion uptake for dearsenification of water due to synergistic effects and is able to meet the stringent target of 10 ppb of As on potable water being adopted by most countries. High selectivity, faster kinetics and high adsorption capacity ensures cost effectiveness of this product as compared to other low-cost products for dearsenification. Zeolite analogues with anionic characteristics have been developed for their applications for removal of arsenic from water. The material developed can also be used to remove other anions like chromium and selenium.

    Abstract translation: 本发明涉及通过用诸如十六烷基三甲基溴化铵(HDTMA-Br)的表面改性剂处理从商业沸石和飞灰基沸石开发的经济有效的表面改性沸石材料。 具有阴离子特性的沸石材料的形成需要用初始浓度大于其临界胶束浓度(CMC)的表面活性剂进行处理。 氧杂阴离子对表面活性剂改性沸石(SMZ)的吸附归因于表面络合和表面沉淀。 金属离子在SMZ上的结合表现出改善的阴离子吸收,由于协同效应使水脱水,能够达到大部分国家采用的10 ppb的饮用水的严格目标。 与其他低成本脱砷产品相比,高选择性,更快的动力学和高吸附能力确保了该产品的成本效益。 已经开发了具有阴离子特性的沸石类似物用于从水中除去砷的应用。 开发的材料也可用于除去其他阴离子如铬和硒。

    Method for detecting the presence of water born pathogens and indicator microorganism
    8.
    发明申请
    Method for detecting the presence of water born pathogens and indicator microorganism 审中-公开
    检测出生水生病原体和指示剂微生物的方法

    公开(公告)号:US20070218468A1

    公开(公告)日:2007-09-20

    申请号:US11506916

    申请日:2006-08-18

    CPC classification number: C12Q1/6888

    Abstract: The present invention relates to a method for detecting the presence of water born pathogens and indicator microorganism including bacteria from water sample by selecting the target gene carried in template DNA by amplifying the target DNA using specific primers with biotinylated tag consist of all or a substantial part of 5′-CTGATCGAATGGCTGCCAGGCTCC-3′ and 5′-CAACCAGACGATAGTTATCACGCA-3′ and taq DNA polymerase to get desired biotinylated tagged probe followed by hybridization of biotinylated tagged probe with target gene in template DNA followed by enzyme coupled reaction.

    Abstract translation: 本发明涉及通过使用具有生物素标记的特异性引物扩增靶DNA,通过选择模板DNA中携带的靶基因来检测来自水样品的水生病原体和指示剂微生物的指示微生物的方法,所述生物素标记由全部或实质部分 的5'-CTGATCGAATGGCTGCCAGGCTCC-3'和5'-CAACCAGACGATAGTTATCACGCA-3'和taq DNA聚合酶以获得所需的生物素标记的探针,随后将生物素标记的探针与靶基因杂交在模板DNA中,随后进行酶偶联反应。

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