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Furthermore, BFF ended up being utilized to flocculate straw ash-washing wastewater which displays low-density and high pH properties, in addition to highest flocculating rate of 93.1per cent ended up being achieved whenever 6.0 mg/L BFF was added. This study reported the very first time that feather waste had been utilized as inexpensive option nitrogen origin for making bioflocculant that could treat straw ash-washing wastewater, thus promoting the resourceful utiliza