Bioflocculant from pre-treated sludge and its applications in sludge dewatering and swine wastewater pretreatment
作者： Junyuan Guo , Jing Ma
DOI: 10.1016/J.BIORTECH.2015.07.113
关键词:
摘要: Potentials of alkaline-thermal (ALT) pre-treated sludge as a bioflocculant were studied in dewatering and swine wastewater pretreatment. When incubated with this ALT sludge, dry solids (DS) specific resistance to filtration (SRF) typical activated reached 22.5% 3.4×10(12)m/kg, respectively, which much better than that obtained conventional chemical flocculants. Sludge was further improved when both the polyaluminum chloride (PAC) used simultaneously. Charge neutralization inter-particle bridging proposed reasons for enhanced performance case combined use. With wastewater, could remove COD, ammonium turbidity by 45.2%, 41.8% 74.6% 20mg/L at pH 8.0. This study suggested has great potential an alternative flocculants
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