橄榄榨油厂废水的电凝处理以提高沼气产量。
Electrocoagulation of olive mill wastewaters to enhance biogas production.
作者信息
Sounni Fatiha, Aissam Halah, Ghomari Oumaima, Merzouki Mohammed, Benlemlih Mohammed
机构信息
Biotechnology Laboratory, Faculty of Sciences Dhar El Mahraz, University Sidi Mohammed Ben Abdellah, Fez, Morocco.
出版信息
Biotechnol Lett. 2018 Feb;40(2):297-301. doi: 10.1007/s10529-017-2464-5. Epub 2017 Nov 9.
OBJECTIVES
To assess the combination of electrocoagulation and anaerobic co-digestion of olive mill wastewaters (OMWW) with other substrates, such as chicken manure, in a continuous stirred tank reactor for biogas production.
RESULTS
Anaerobic digestion of OMWW treated by electrocoagulation allowed higher production of biogas, up to 0.74 l biogas g COD introduced compared to untreated or diluted olive mill wastewaters (OMWW) (0.37 and 0.6 l biogas g COD) respectively. Pretreated OMWW co-digested with chicken manure at different volumic ratios OMWW/manure in a continuous stirred tank reactor under mesophilic conditions revealed that OMWW/manure (7:3 v/v) was optimal for biogas production and process stability.
CONCLUSION
Anaerobic digestion could achieve promising results in depollution and valorization of OMWW under a continuous stirred tank reactor.
目的
在连续搅拌槽式反应器中，评估电凝法与橄榄榨油厂废水（OMWW）和其他底物（如鸡粪）的厌氧共消化相结合用于沼气生产的效果。
结果
经电凝法处理的OMWW进行厌氧消化可产生更多沼气，与未处理或稀释的橄榄榨油厂废水（分别为0.37和0.6升沼气/克化学需氧量）相比，引入的化学需氧量每克可产生高达0.74升沼气。在中温条件下，经预处理的OMWW与鸡粪以不同的体积比（OMWW/鸡粪）在连续搅拌槽式反应器中共消化，结果表明，OMWW/鸡粪（7:3体积比）对沼气生产和工艺稳定性最为适宜。
结论
在连续搅拌槽式反应器中，厌氧消化在OMWW的污染治理和价值转化方面可取得良好效果。
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