Nutrients removal from artificial bathroom greywater using Botryococcus sp. strain

4th International Conference on Civil and Environmental Engineering for Sustainability

地球科学;生态环境科学;经济学

Mohamed, R.M.S.R.^1 ; Al-Gheethi, A.A.^1 ; Wurochekke, A.A.^1 ; Maizatul, A.Y.^1 ; Matias-Peralta, H.M.^2 ; Mohd Kassim, A.H.^1

Micropollutant Research Centre (MPRC), Faculty of Civil Engineering, Universiti Tun Hussein Onn Malaysia, Parit Raja, Johor, Batu Pahat

86400, Malaysia^1

Faculty of Applied Sciences and Technology, Universiti Tun Hussein Onn, Pagoh Educational Hub, Muar, Johor

84600, Malaysia^2

关键词: Biokinetic models;    Breeding grounds;    Initial concentration;    Kinetic coefficient;    Nutrients removal;    Specific removal rate;    Total Organic Carbon;    Total phosphorus;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/140/1/012026/pdf
DOI  :  10.1088/1755-1315/140/1/012026

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

The discharge of untreated bathroom greywater directly into drain is a most common practice in the rural area. The uncontrolled discharge of greywater from the village houses escalates the pollution among Malaysian river and provide insanitary environment through mosquito and flies breeding grounds. Therefore, the current work aimed to investigate the potential of Botryococcus sp. for removing total nitrogen (TN), total phosphorus (TP) and total organic carbon (TOC) from artificial bathroom greywater and to determine the bio-kinetic removal rate for these parameters. The artificial bathroom greywater was prepared by using regular brands used in the community, the bathroom greywater quality was tested for BOD, COD, SS, pH, and Turbidity. The removal process was conducted in the lab scale with 108 cell mL-1 of Botryococcus sp. The removal of TN, TP and TOC was measured in interval of 3, 5 and 7 days. The results deduced that Botryococcus sp. removed 51.5% of TN, 49.5% of TP and 42.6% of TOC. Moreover, the bio-kinetic model studies, revealed that the specific removal rate of TN, TP and TOC have a significant relationship with initial concentration in the artificial greywater (R2= 0.63, 0.95 and 0.95 respectively). The kinetic coefficient of greywater parameters removed by Botryococcus sp. was determined as k=0.357 mg TN 1 log10cell mL-1 d-1 and km=31.33 mg L-1 (R2=0.73), k=4.58 mg TP 1 log10cell mL-1 d-1 and km=283.86 mg L-1 (R2=0.95), k=7.9 mg TOC 1 log10cell mL-1 d-1 and km=322.32 mg L-1 (R2=0.97). The bio-kinetic model indicated that more than 90% of TN, TP and TOC was taken place as a response for Botryococcus sp.