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Abstract ▼ AI-Helper

Sewage sludge generation has been increased remarkably with the increase of wastewater treatment plants. Currently our country depends mostly on landfill for sludge disposal. Many sludge treatment and recycling methods have been evaluated in this paper. We divided largely reuse and energy recovery f...

Sewage sludge generation has been increased remarkably with the increase of wastewater treatment plants. Currently our country depends mostly on landfill for sludge disposal. Many sludge treatment and recycling methods have been evaluated in this paper. We divided largely reuse and energy recovery for recycling methods of sewage sludge. Previously. there are a few of methods for the reuse of sewage sludge. Sludge composting is a feasible method of recycling and compost can be used as fertilizer or less stringent usages. Another feasible method is sludge incineration and ash can be used for construction materials, and the sludge can be recycled by thermal slag formation. There are some methods, to recover energy from the sewage sludge: refuse derived fuel, pyrolysis and liquid fuel production. Currently, there technology are not feasible to apply. However, due to calorific value, these technology could be remarkably developed in the future.

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