Five scientists have worked on this from 2011 to the beginning of this year, said Dr Yan Zhiying, a bacteriologist with the academy s Chengdu Institute of Biology, adding that they had spent ￡140,000 on the project.

　　Some local government officials here visited a sewage plant and saw that the treatment technology had come from Japan. They wanted a home-grown solution so they asked us to work on it, he added.

　　We extracted bacteria from all type of excrement, human, pig, chicken and duck, and we tested our compounds one by one, he said.

　　The smells coming out of public lavatories, or cesspits, or rubbish tips, are made up of more than 160 different compounds, he explained, adding that their bacteria, including a strain from the lactobacillus, saccharomycetes and actinomycetes families, can convert and absorb many of them.

　　He boasted that the Chinese formula, which costs around ￡5 per litre, has no side effects and can be used to fend off the stench of any type of biological decomposition.

　　More recently, Beijing has waged a war to improve conditions in public lavatories, first introducing a star-rating and then, two years ago, drafting a rule that no more than two flies should be present in any of the city s facilities at the same time.

【考研英语阅读篇章中国科学家将战胜厕所臭气】相关文章：

★ 2013年英语六级阅读备考的练习题及答案19

★ 英语四级阅读难句解析一

★ 英语四级快速阅读原文

★ 2011英语六级考试阅读四大常考题型的分析

★ 英语六级阅读练习：现代建筑林立凸显伦敦塔不受尊重

★ 英语四级考试仔细阅读每日一练(12.24)

★ 大学英语四级阅读理解练习题（2）

★ 英语六级考试阅读理解核心备考词汇的归类A

★ 英语六级阅读专项王长喜六级考试标准的阅读1

★ 2009年6月英语六级阅读冲刺的倒计时倒数14天