{"title":"Performance of Modified Anaerobic Hybrid Baffled (MAHB) bioreactor treating recycled paper mill effluent: Effects of organic loading rates","authors":"S. R. Hassan, I. Dahlan","doi":"10.47253/jtrss.v6i1.720","DOIUrl":null,"url":null,"abstract":"The performance of modified anaerobic hybrid baffled (MAHB) bioreactor treating recycled paper mill effluent (RPME) was investigated at various organic loading rates (OLR) of 1, 2, 3 and 4 g COD/ L.day. The bioreactor was operated continuously at constant hydraulic retention time (HRT) of a day without effluent recycled and chemicals adjustment/addition. Throughout 70 days of operation, a maximum removal efficiency up to 97% of chemical oxygen demand (COD) and 98% of volatile fatty acid, biogas production of 12.51 L/day equivalent to methane (CH4) yield of 0.108L CH4/ g COD and a stable pH system between 6.6 to 7.2 were achieved. Additionally, alkalinity of the bioreactor system shows a stable profile that indicates the whole system was well buffered with a quit high degradation of volatile solid (VS) up to 18%. These results indicated that MAHB bioreactor has been successfully treated RPME at various OLR.","PeriodicalId":17457,"journal":{"name":"Journal of Tropical Resources and Sustainable Science (JTRSS)","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2021-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"2","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Tropical Resources and Sustainable Science (JTRSS)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.47253/jtrss.v6i1.720","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 2
Abstract
The performance of modified anaerobic hybrid baffled (MAHB) bioreactor treating recycled paper mill effluent (RPME) was investigated at various organic loading rates (OLR) of 1, 2, 3 and 4 g COD/ L.day. The bioreactor was operated continuously at constant hydraulic retention time (HRT) of a day without effluent recycled and chemicals adjustment/addition. Throughout 70 days of operation, a maximum removal efficiency up to 97% of chemical oxygen demand (COD) and 98% of volatile fatty acid, biogas production of 12.51 L/day equivalent to methane (CH4) yield of 0.108L CH4/ g COD and a stable pH system between 6.6 to 7.2 were achieved. Additionally, alkalinity of the bioreactor system shows a stable profile that indicates the whole system was well buffered with a quit high degradation of volatile solid (VS) up to 18%. These results indicated that MAHB bioreactor has been successfully treated RPME at various OLR.
研究了改性厌氧混合折流板(MAHB)生物反应器在1、2、3和4 g COD/ l .d的不同有机负荷下处理造纸废水(RPME)的性能。生物反应器以1天的恒定水力停留时间(HRT)连续运行,不回收废水,不调整/添加化学品。在70天的运行过程中,达到了97%的化学需氧量(COD)和98%的挥发性脂肪酸的最高去除率,沼气产量为12.51 L/天,相当于甲烷(CH4)的产量为0.108L CH4/ g COD, pH系统稳定在6.6 ~ 7.2之间。此外,生物反应器系统的碱度显示出稳定的特征,表明整个系统得到了很好的缓冲,挥发性固体(VS)的降解率高达18%。这些结果表明,MAHB生物反应器在不同的OLR条件下成功地处理了RPME。