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Key Data Set Information
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Location
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CN
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Name
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Municicpal sludge treatment and disposal;dry sludge;composting
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Use advice for data set
| When using this data set, users should ensure that they account for the specific composting process parameters and emissions involved. It is imperative that users consider relevant local regulations and standards for composting and the subsequent use of the compost produced. The functional unit is one ton of dry sludge (1 t-DS); this should be the reference for any assessments and comparisons. Any potential environmental benefits or burdens from the use of compost as opposed to disposal without resource recovery should also be taken into account. |
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Technical purpose of product or process
| The technical use of the data set describes the process of municipal sludge treatment and disposal via composting. This process is relevant for waste management facilities that specialize in converting dry sludge into compost, which can subsequently be used as a fertilizer or soil amendment in various agricultural and landscaping applications. |
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Classification
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Class name
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Hierarchy level
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| Several typical sludge treatment facilities in China, representing anaerobic digestion, composting, co-combustion, thermal drying-incineration, and cement production, respectively, are selected to carry out the inventory. Data are mainly taken from the site-specific measurement, either by field survey or by operation report. Sludge characteristics are based on the average values of the sites investigated. |
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Copyright
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No
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Owner of data set
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Quantitative reference
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Reference flow(s)
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Functional Unit
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One ton of sludge on a dry basis (1 t-DS) is defined as the functional unit.
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Technological representativeness
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Technology description including background system
| According to the operating data, around 57% organic matter degrades, and the sludge moisture after composting is approximately 40%. Total N and total P after composting is 2.01% and 1.27% of digested matter on a dry basis, respectively. |