杨和行¹,
杨帆¹,
陈晓倩¹,
杨婧¹,
殷浩文¹,
张弘²
1. 上海市检测中心, 上海 201203;
2. 华东师范大学, 上海 200062

作者简介: 杨和行(1989-),女,本科,研究方向为生态环境及化学品环境风险评估,E-mail:sallyanghx@gmail.com.

基金项目: 上海市技术性贸易措施应对专项化学品模拟生物降解技术研究(13TBT012)


中图分类号: X171.5

Biodegradation of UV Filter BP-4 in Simulation Test

Yang Hexing¹,
Yang Fan¹,
Chen Xiaoqian¹,
Yang Jing¹,
Yin Haowen¹,
Zhang Hong²
1. Shanghai Academy of Public Measurement, Shanghai 201203, China;
2. East China Normal University, Shanghai 200062, China

CLC number: X171.5

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摘要:为研究紫外吸收剂2-羟基-4-甲氧基二苯甲酮-5-磺酸(BP-4)的最大生物降解能力，采用欧洲经济合作与发展组织(OECD)生物降解测试标准方法——303A模拟试验-污水好氧处理：活性污泥单元法，建立并进行了城市污水处理厂曝气池环境模拟试验。研究结果表明：在单一新鲜活性污泥作为接种物条件下，BP-4在第47天达到降解稳定期，溶解性有机碳 (DOC)去除率平均值为36.90%±5.68%(n=18)。在以10种不同来源混合接种物条件下，BP-4在第41天达到降解稳定期，去除率平均值为33.11%±4.87%(n=17)。研究结果表明BP-4在环境中的降解能力有限，在本模拟方法试验条件下只能部分降解。
关键词: BP-4/
模拟生物降解/
DOC

Abstract:High consumption and emission of UV filters have become a great threat to the environment and human health. In order to determine the maximum degradation of the benzophenone derivative, benzophenone-4 (BP-4), simulation tests were carried out based on the OECD Guideline for the testing of chemicals—simulation test aerobic sewage treatment-303 A: Activated sludge units. Our results showed that: when using the single fresh activated sludge as the inoculum, it took 47 days for BP-4 to reach the plateau phase. The average DOC elimination was 36.90%±5.68% (n=18). While using the mixed activated sludge sampled from ten different sources as the inoculum, it took 41 days to reach the plateau phase. The average DOC elimination was 33.11%±4.87% (n=17). It can be concluded that BP-4 only was partially degraded in the ambient environment according to our simulation test.
Key words:BP-4/
biodegradability/
simulation test.