Microbial electrolysis followed by chemical precipitation for effective nutrients recovery from digested sludge centrate in WWTPs

Basem S. Zakaria
Basem S. Zakaria
Tae Chung
Tae Chung
Tesfaalem Haile
Tesfaalem Haile

Chemical Engineering Journal, pp. 256-265, 2019.

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Abstract:

•MEC followed by chemical precipitation was studied for N&P recovery from centrate.•Inadequate biodegradable COD in centrate led to ineffective N recovery in MEC.•Centrate was mixed with sludge fermentation liquor to enhance N recovery in MEC.•Recovered H2 gas was adequate to offset the electricity cost of MEC operation.•P was efficiently...More

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