Removal of sludges from Wastewater Treatment Plants (WWTP) represents a serious worldwide environmental problem for which alternatives other than their simple incineration are investigated. In this work the treatment of raw sludge from urban WWTP by means of a minimization process through spray-drying is analyzed as well as some proposals for revaluating the resulting dry product. Analysis is s...

Resource recovery and reuse from domestic wastewater has become an important subject for the current development of sanitation technologies infrastructures. Different are available combined into concepts, with different performances. This study provides a methodological approach to evaluate sustainability these concepts focus on resource reuse. St. Eustatius, small tropical island in Caribbean,...

This paper deals with thermal drying of wastewater sludges, whose management will become crucial in the forthcoming years. Sludges collected after mechanical dewatering in 5 different WWTPs are submitted to the same convective drying treatment in order to try finding some relations between the drying behaviours, the type of effluent and wastewater treatments. Results show dearly sludge drying r...

in order to prevent water losses through disposing hydrous sludge during treatment of water, also recovery and reuse of chemicals; treatment by magnesium carbonate as a coagulant was examined in batch and continuous systems. 600 mg/1 mgco3 as optimum dosage reduced 80% turbidity of a highly turbid water containing 200 ntu. sulfates decreased, but hardness and alkalinity showed some increases. r...

Scarcity of water resource recommended developing innovative technology to reclaim wastewater. Greywater is an appropriate source reuse through advanced treatment. Meanwhile, MBRs are novel techniques wastewater, which composed activated sludge processes and membrane filtration. Characteristic application Hybrid MBR, MBMBR OMBR were reviewed in this article. And sources, analysis methods contro...

Implementing a circular economy approach to sanitation requires knowledge of the costs construct, operate and maintain resource-oriented systems. Yet dearth data on urban in general, systems particular, limit opportunities progress sustainable low- middle-income countries. This paper contributes empirical life-cycle system Sri Lanka, addressing gap evidence about how much it costs, who pays, fo...