GB/T 23484-2009The disposal of sludge from municipal wastewater treatment plant - The classification (English PDF)

2.1

Referred to the various towns discharge sewage, waste water, which consists of a comprehensive domestic sewage, industrial wastewater and groundwater infiltration into three parts. in

Combined sewer system, also includes the closure of rain.

2.2

Entering the town sewerage system of sewage purification plant.

2.3

Moisture content of urban sewage treatment plant sewage purification process in different semi-solid or solid substances, not including screenings, scum

Grit and gravel.

2.4

Sludge stabilization process of reduction and safe disposal, and typically include concentrated (conditioning), dehydration, anaerobic digestion, aerobic digestion,

Lime stabilization, composting, drying and incineration.

2.5

Consumptive sludge treatment process, usually including land use, landfill, incineration, and the use of building materials.

2.6

Treated sludge as fertilizer or soil improvement material for landscaping, disposal or agricultural land improvement and other occasions.

2.7

Structural measures will focus on sludge-treated heap, fill, buried, placed in controlled disposal site within the subject.

2.8

Sludge disposal as part of the production of the raw material supplies.

2.9

Use of the sludge incinerator complete mineralization of a small amount of ash disposal method.

Category 3 urban sewage treatment plant sludge disposal 3.1 sludge disposal by sludge consumptive way classification.