Current Status of Sludge Collection, Transportation and Treatment in Ho Chi Minh City
Current Status of Sludge Collection, Transportation and Treatment in Ho Chi Minh City
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胡志明市污泥收集、运输和处理现状
DOI：
10.4236/jep.2013.412154
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发表时间：
2013
期刊：
影响因子：
--
通讯作者：
N. Loan
中科院分区：
文献类型：
--
作者：
N. Viet;T. T. Dieu;N. Loan
在建设和发展过程中，胡志明市排放了大约六种污泥：1)城市污水排水系统的污泥；2)工业废水排水系统的污泥；3)定期疏浚运河的污泥；4)化粪池的污泥；5)水处理站/厂的污泥；6)建筑工地的污泥。不同类型的污泥的污泥成分差异很大，来自下水道管网和渠道疏浚的污泥主要含有沙子和土壤(70%-90%干重)，而来自废水/水处理站/工厂和化粪池的污泥主要含有可生物降解的有机物(55%-80%干重)。除危险工业废水处理厂的污泥外，上述所有污泥的浓度均低于毒性阈值。除自来水厂产生的污泥量(单独收集和处理)外，总污泥量约为3000-4000立方米/天(5000-6000吨/天)。污水处理厂和化粪池的污泥被收集、运输和回收，成为有机肥料。其他类型的污泥被收集、运输和处置在“未知”的地点，尽管它们有不同的使用价值。
In the process of construction and development, Ho Chi Minh City is discharging about six types of sludge: 1) sludge from urban wastewater drainage systems; 2) sludge from industrial wastewater drainage system; 3) sludge from the canal dredging activities periodically; 4) sludge from septic tanks; 5) sludge from the water treatment station/plant; 6) sludge from the construction sites. Sludge’s components are very different among types of sludge, sludge from the sewer network and canal dredging contain mainly sand and soil (70% - 90% dry weight), while the sludge from the wastewater/water treatment station/plant and from septic tanks contain mainly biodegradable organic substances (55% - 80% dry weight). The concentrations of all above-mentioned sludge (except sludge from the hazardous industrial wastewater treatment plant) are lower than toxic threshold. The volume of total sludge is about 3000 - 4000 m3/day (5000 - 6000 tons/day), excepting the amount of sludge generated from the water treatment plant (which is collected and treated separately). Sludge from wastewater treatment plants and septic tanks is collected, transported and recycled to become organic fertilizer. The other types of sludge are collected, transported, and disposed at the “unknown” locations, even though they have different values for use.