Municipal sludge treatment and disposal;dry sludge;dewatering

Categories:
Categories:
Unit processes/End-of-life treatment/Waste water treatment
Location:
CN - China
Reference year: -
Description

The main data sources used in our study are as follows: 1) Energy consumption and material inputs are obtained from investigations in Tai Lake Watershed; 2) The energy use emission factor is obtained from our own calculation, IPCC, and the literature.3) The fugitive emissions during landfilling, incineration, and composting are mainly determined by the model given in the other study as well as by the IPCC factors (2006), except for the CH4 emission in landfilling, which is obtained from study.4) Data from theoretical calculations (see Incineration section). When using this dataset for Life Cycle Assessment, ensure inclusion of all relevant lifecycle stages of sludge treatment and disposal. Pay particular attention to the methodological appropriateness of the data especially regarding the Tai Lake Watershed context. Consider the representativeness of the data for the specific geographic region and time period. It is advised to account for technology variations and operational practices that may affect greenhouse gas emissions. The functional unit of one dry ton of sludge should be consistently applied across the assessment.

Technology

According to the operating data, about 12.7 tons of cement is produced per ton of the dried sludge considering the combustion loss in the kiln

Process type
Unit
LCI modeling approach
Unknown
Multifunctional modeling
NONE
Format
ILCD
Aggregation type
NOT_APPLICABLE
Data provider
TianGong
Review status
Internal
Cost
Free
Contact
Tiangong LCI Data Working Group