Current state of sludge production, management, treatment and disposal in China
Current state of sludge production, management, treatment and disposal in China
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DOI：
10.1016/j.watres.2015.04.002
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发表时间：
2015-07-01
期刊：
影响因子：
12.8
通讯作者：
Wang, Hongchen
中科院分区：
文献类型：
--
作者：
Yang, Guang;Zhang, Guangming;Wang, Hongchen
大量的污泥是一个巨大的麻烦，在中国引起了极大的关注。本文综述了我国污泥的产生、管理、处理和处置现状。2007年至2013年，中国污泥总产量年均增长13%，2013年产生干固体625万吨。我国人均污泥产量低于发达国家。然而，中国的污泥管理很差。污泥的管理主体不一致。污泥管理的法律法规不完善，有时甚至不切实际。在污泥处理处置方面，我国已经采用了多种技术路线。浓缩、调质和脱水是目前最常用的三种处理方法，而稳定化和干燥在我国的应用比例较低。在我国，80%以上的污泥是通过不适当的倾倒方式处置的。在妥善处置方面，卫生填埋是最常见的，其次是土地利用、焚烧和建筑材料。从我国总体情况来看，“浓缩-厌氧消化-脱水-土地利用”是污泥处理处置的优先技术路线。对该技术路线在中国的良好变化、目前面临的挑战和未来前景进行了详细的分析和讨论。(C)2015爱思唯尔有限公司版权所有。
Large amount of sludge has been a great trouble and raised significant concerns in China. This paper reviewed the current situation of sludge production, management, treatment and disposal in China. Total sludge production in China had an average annual growth of 13% from 2007 to 2013, and 6.25 million tons dry solids was produced in 2013. Per Capita sludge production in China is lower than that in developed countries. However, sludge management is poor in China. Administrative agents of sludge are not in accordance with each other. Laws and regulations of sludge management are incomplete and sometimes unrealistic. As to sludge treatment and disposal, many technical routes have been applied in China. Thickening, conditioning, and dewatering are three most used treatment methods, while application ratios of stabilization and drying are low in China. More than 80% of sludge is disposed by improper dumping in China. Regarding proper disposal, sanitary landfill is the commonest, followed by land application, incineration and building materials. According to the overall situation of China, "thickening-anaerobic digestion-dewatering-land application" is the priority technical route of sludge treatment and disposal. Good changes, current challenges and future perspectives of this technical route in China were analyzed and discussed in details. (C) 2015 Elsevier Ltd. All rights reserved.