CN107973415B - 病鳝假单胞菌降解紫外吸收剂pbsa的用途 - Google Patents

病鳝假单胞菌降解紫外吸收剂pbsa的用途 Download PDF

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CN107973415B
CN107973415B CN201711242047.9A CN201711242047A CN107973415B CN 107973415 B CN107973415 B CN 107973415B CN 201711242047 A CN201711242047 A CN 201711242047A CN 107973415 B CN107973415 B CN 107973415B
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pbsa
pseudomonas
eel
diseased
ultraviolet absorbent
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CN107973415A (zh
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金超
庞鑫彤
王振
季静
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Tianjin University
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    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00Biological treatment of water, waste water, or sewage
    • C02F3/34Biological treatment of water, waste water, or sewage characterised by the microorganisms used
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00Nature of the contaminant
    • C02F2101/30Organic compounds
    • C02F2101/34Organic compounds containing oxygen
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00Nature of the contaminant
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    • C02F2101/40Organic compounds containing sulfur

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Abstract

本发明公开了病鳝假单胞菌降解紫外吸收剂PBSA的用途,所述病鳝假单胞菌(Pseudomonas Anguilliseptica)菌种保藏号为ATCC 33660。实验证明,病鳝假单胞菌(Pseudomonas Anguilliseptica)ATCC 33660降解紫外吸收剂PBSA的降解率在58%左右。

Description

病鳝假单胞菌降解紫外吸收剂PBSA的用途
技术领域
本发明属于生活污水处理领域,特别是涉及病鳝假单胞菌降解紫外吸收剂PBSA的用途。
背景技术
近年来,紫外吸收剂被广泛应用于对紫外线UV敏感的化学制品中,如塑料、涂料、化妆品和洗涤用品,可起到稳定和防变色作用。随着使用时间的延长,通过生活污水,医院、工厂废水及农田排水逐渐释放到水环境中。其中,紫外吸收剂(2-苯基苯并咪唑-5-磺酸,PBSA)作为一种典型的紫外吸收剂,广泛地应用于各种化妆品及防晒霜中。PBSA分子式为C13H10N2O3S,分子量为274.30。PBSA可以通过皮肤和衣物的冲洗等途径直接进入环境水体,也可以由污水厂或游泳池等途径间接地进入水环境。据报道PBSA在水环境体系中的暴露浓度达到109-2679ng·L-1。最近的研究表明,PBSA在紫外线的照射下,会光解产生活性氧并会造成DNA损伤。因此,长期广泛地使用紫外线吸收剂会对水环境体系造成不可逆转的危害,所以在水环境体系中转移并降解PBSA的研究是非常有必要的。
对于有机物的去除通常可以采用高级氧化法、膜过滤法、生物处理技术等。高级氧化法去除污染物效率高,但由于其工程造价高,且目前有关降解产物的毒理性研究较少,因此现实中应用较少。纳滤以及一些膜复合工艺(如活性炭-超滤复合工艺、MBR工艺)也得到较多研究,在实际应用中由于载体装置的容积有限,且附着在载体表面的微生物量难以控制等缺点也没有得到大规模应用。
生物处理技术是利用微生物的矿化作用或共代谢作用,将水体中的有机物分解为CO2和H2O,或者有机酸和醇等,从而达到净化污水的目的。但是寻找能够降解紫外吸收剂PBSA的微生物是个难题。
发明内容
本发明的目的是克服现有技术的不足,提供一种病鳝假单胞菌降解紫外吸收剂PBSA的用途。
本发明的技术方案概述如下:
病鳝假单胞菌(Pseudomonas Anguilliseptica)降解紫外吸收剂PBSA的用途,所述病鳝假单胞菌菌种保藏号为ATCC 33660。
本发明的优点:
实验证明,病鳝假单胞菌(Pseudomonas Anguilliseptica)ATCC 33660降解紫外吸收剂PBSA的降解率在58%左右。
附图说明
图1是病鳝假单胞菌株对PBSA的降解曲线。
具体实施方式
下面通过具体实施例对本发明作进一步的说明。
病鳝假单胞菌菌种保藏号为ATCC 33660,于2016年12月购于北纳生物。
实施例1
病鳝假单胞菌(Pseudomonas Anguilliseptica)ATCC 33660(以下简称病鳝假单胞菌)的培养与检测:
(1)病鳝假单胞菌种子液的制备:
将病鳝假单胞菌(购买于北纳生物,其菌种保藏号为ATCC 33660)接种在含PBSA液体培养基中,于25℃培养至对数期,制备成种子液;
所述的含PBSA液体培养基:[PBSA]=5mg/L,[K2HPO4]=3.5g/L;[KH2PO4]=1.5g/L;[(NH4)2SO4]=0.5g/L;[NaCl]=0.5g/L;[MgSO4·7H2O]=0.15g/L,并用微量元素修正,121℃灭菌20min。
所述微量元素为:[NaHCO3]=0.65g/L,[MnSO4·H2O]=0.2g/L,[ZnSO4·7H2O]=0.2g/L,[CuSO4·5H2O]=0.1g/L,[CoCl2·6H2O]=0.5g/L,[CaCl2·2H2O]=0.05g/L,[FeSO4·7H2O]=0.5g/L。
(2)菌种的降解条件的优化:
在以不同的接种量将上述培养至对数期的种子液别分接种至100mL含PBSA液体培养基中,在不同条件下培养,如培养温度分别为15℃、25℃、30℃;转速分别为120rpm,150rpm,180rpm,接种量分别为5%、10%、20%。
(3)菌株降解后PBSA的富集与洗脱:
将步骤(2)得到的培养基中取出15mL,离心20min,将上清液用活化后的固相小柱(Oasis HLB 6mL,500mg)萃取。余下的泥浆,加入2mL甲醇,再用超声波超声三次,10min/次,再次离心,将上清液用10mL去离子水稀释,最后用同一固相小柱萃取。
固相小柱的活化(预处理):A.5mL甲醇活化C18小柱,2ml/min;
B.10mL色谱级纯净水活化C18小柱,2mL/min;
目标分析物的洗脱:10mL甲醇以15mL/min的流速洗脱柱子;
然后,将萃取物用N2吹干,后用丙酮溶解;
最后,用0.22μm的滤头过滤到琥珀色液相小瓶中,待测HPLC。
HPLC分析的液相色谱条件:
柱温30℃;流动相为水:乙腈=9:1;流速1mL/min;保留时间为2.5min。
结果表明,在最佳培养条件(转速为150rpm,温度为15℃,接种量为20%)培养20天,病鳝假单胞菌株对PBSA的降解率达58%。结果如图1所示。
实施例2
病鳝假单胞菌株的实际应用:
(1)取天津大学敬业湖的湖水样品经HPLC检测,发现没有PBSA检出。向取得的湖水样品中加入5mg/LPBSA,再按种实施例1步骤(1)获得的种子液培养至对数期,接种量为20%,在常温下,处理20天,按实施例1中的方法对PBSA进行检测,发现该菌株对PBSA的降解率为40%。
以上对本发明的详细说明,但所述内容仅为本发明的较佳实施例,不能被认为用于限定本发明的实施范围。凡依本发明申请范围所做的均等变化和改进等,均应仍归本发明的专利涵盖范围内。

Claims (1)

1.病鳝假单胞菌(Pseudomonas Anguilliseptica)降解紫外吸收剂PBSA的用途,所述病鳝假单胞菌菌种保藏号为ATCC 33660。
CN201711242047.9A 2017-11-30 2017-11-30 病鳝假单胞菌降解紫外吸收剂pbsa的用途 Expired - Fee Related CN107973415B (zh)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101801855A (zh) * 2007-07-12 2010-08-11 金伯利-克拉克环球有限公司 用于从水性流出物中分离化合物的处理腔
JP6086706B2 (ja) * 2012-11-14 2017-03-01 ポーラ化成工業株式会社 高い紫外線吸収効果を有する皮膚外用組成物
CN106674728A (zh) * 2016-12-09 2017-05-17 宁夏盐池西部畅享农业生物科技有限公司 一种易降解、抗收缩聚丙烯母料及其制备方法

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US8394498B2 (en) * 2008-12-16 2013-03-12 Certainteed Corporation Roofing granules with high solar reflectance, roofing materials with high solar reflectance, and the process of making the same

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101801855A (zh) * 2007-07-12 2010-08-11 金伯利-克拉克环球有限公司 用于从水性流出物中分离化合物的处理腔
JP6086706B2 (ja) * 2012-11-14 2017-03-01 ポーラ化成工業株式会社 高い紫外線吸収効果を有する皮膚外用組成物
CN106674728A (zh) * 2016-12-09 2017-05-17 宁夏盐池西部畅享农业生物科技有限公司 一种易降解、抗收缩聚丙烯母料及其制备方法

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