期刊
DESALINATION AND WATER TREATMENT
卷 220, 期 -, 页码 101-108出版社
DESALINATION PUBL
DOI: 10.5004/dwt.2021.26942
关键词
Activated coconut shell carbon; Green mussel shell; Zeolite; Composite adsorbent; Ammoniacal nitrogen and chemical oxygen demand (COD); Leachate wastewater
资金
- Ministry of Higher Education, Universiti Tun Hussein Onn Malaysia [E15501]
The study investigated the adsorption capacity of activated coconut shell carbon, green mussel, zeolite and newly composite mass on COD and ammoniacal nitrogen in leachate wastewater treatment. The results showed that the composite adsorbents exhibited higher removal efficiency for both COD and ammoniacal nitrogen compared to other materials. Langmuir model was slightly better fitted for organic constituents while Freundlich model was more suitable for ammoniacal nitrogen.
Ammoniacal nitrogen and organic constituent (COD) are two crucial problematic parameters in leachate wastewater treatment. To achieve the objectives of this research, isotherm parameters for adsorption of COD and ammoniacal nitrogen by activated coconut shell carbon, green mussel (Perna viridis), zeolite and newly composite mass were investigated. All the adsorption materials were crushed and sieved to obtain the desired particle size of 150 mu m. The optimum batch adsorption study condition was reported at 120 min contact time, 200 rpm shaking speed and pH 7. The result shows that all the adsorbents were well fitted with two different models namely Langmuir and Freundlich isotherm model whereas the coefficient of determination (R-2) value is greater than 0.9 for COD. A comparison research study indicates that the adsorption ability of composite adsorbents shows a higher tendency reduction of both COD and ammoniacal nitrogen than granular activated carbon, green mussel and zeolite. Generally, the results of the findings revealed that the Langmuir adsorption model was slightly better fitted and suitable for organic constituents while Freundlich was good for ammoniacal nitrogen. Langmuir adsorption coefficient of determination (R-2) for COD are 0.9968, 0.9914, 0.9944 and 0.9991 and Freundlich adsorption coefficient of determination (R-2) for ammoniacal nitrogen are 0.9514, 0.7136, 0.9568 and 0.9667, respectively.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据