Arid
DOI10.1007/s13369-019-03834-6
Treatment of Ablution Greywater for Recycling by Alum Coagulation and Activated Carbon Adsorption
Alharbi, Saleh Khalaf; Shafiquzzaman, Md; Haider, Husnain; AlSaleem, Saleem S.; Ghumman, Abdul Razzaq
通讯作者Shafiquzzaman, Md
来源期刊ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING
ISSN2193-567X
EISSN2191-4281
出版年2019
卷号44期号:10页码:8389-8399
英文摘要A considerable amount of ablution greywater (AGW) is being produced at mosques for cleaning certain parts of the body before performing prayers. In this study, alum coagulation followed by batch and continuous AC adsorption tests was conducted to examine the removal efficiency of turbidity, COD, and BOD to evaluate the recycling potential of AGW. In coagulation experiments, optimal overall removals of turbidity (95.8%), COD (31.6%) and BOD (50.0%) were achieved at 20 mg/L of alum dose. Further, the overall removal efficiencies were enhanced by AC adsorption for COD up to 70.8% and BOD up to 57.2% at 20 min adsorption equilibrium time with 0.2 g/L of optimal AC dose. The adsorption data was well fitted to the pseudo-second-order kinetics model. Both the Langmuir and Freundlich isotherm models were found suitable to characterize the adsorption of COD and BOD on AC. Maximum adsorption capacities were calculated 175 mg/g for COD and 88 mg/g for BOD. Continuous experiments of the AGW treatment process resulted in residual turbidity less than 1 NTU and both the COD and BOD values less than 10 mg/L. Treated AGW was found suitable for unrestricted irrigation, toilet flushing, and firefighting. The estimated cost for a full-scale treatment process (1.02 US$/m(3)) came out to be less than the existing cost of water production (1.09US$/m(3)) in Saudi Arabia. The study revealed that the combination of alum coagulation and AC adsorption is a sustainable treatment option for recycling of AGW in arid and semiarid regions.
英文关键词Ablution greywater (AGW) Recycling Alum coagulation AC adsorption Adsorption models
类型Article
语种英语
国家Saudi Arabia
收录类别SCI-E
WOS记录号WOS:000486026700016
WOS关键词GREY WATER-TREATMENT ; SUBMERGED MEMBRANE BIOREACTOR ; DESIGN ; PB(II) ; REUSE
WOS类目Multidisciplinary Sciences
WOS研究方向Science & Technology - Other Topics
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/214302
作者单位Qassim Univ, Dept Civil Engn, Coll Engn, Buraydah 52571, Saudi Arabia
推荐引用方式
GB/T 7714
Alharbi, Saleh Khalaf,Shafiquzzaman, Md,Haider, Husnain,et al. Treatment of Ablution Greywater for Recycling by Alum Coagulation and Activated Carbon Adsorption[J],2019,44(10):8389-8399.
APA Alharbi, Saleh Khalaf,Shafiquzzaman, Md,Haider, Husnain,AlSaleem, Saleem S.,&Ghumman, Abdul Razzaq.(2019).Treatment of Ablution Greywater for Recycling by Alum Coagulation and Activated Carbon Adsorption.ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING,44(10),8389-8399.
MLA Alharbi, Saleh Khalaf,et al."Treatment of Ablution Greywater for Recycling by Alum Coagulation and Activated Carbon Adsorption".ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING 44.10(2019):8389-8399.
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