OPTIMIZATION OF PARAMETERS IN ADVANCED TREATMENT OF LIVESTOCK WASTEWATER BY ALGAL-BACTERIA IMMOBILIZATION

XIAO Cong-liang; GUO Yuan-tao; LIU Liang; XIN Jia-qi; ZHUO Meng-qiong; LIU Qiang; ZHUO Wen-guang; LI Kun

doi:10.13205/j.hjgc.202106007

Volume 39 Issue 6

Jan. 2022

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Article Navigation > ENVIRONMENTAL ENGINEERING > 2021 > 39(6): 42-48,166

XIAO Cong-liang, GUO Yuan-tao, LIU Liang, XIN Jia-qi, ZHUO Meng-qiong, LIU Qiang, ZHUO Wen-guang, LI Kun. OPTIMIZATION OF PARAMETERS IN ADVANCED TREATMENT OF LIVESTOCK WASTEWATER BY ALGAL-BACTERIA IMMOBILIZATION[J]. ENVIRONMENTAL ENGINEERING , 2021, 39(6): 42-48,166. doi: 10.13205/j.hjgc.202106007

Citation:

XIAO Cong-liang, GUO Yuan-tao, LIU Liang, XIN Jia-qi, ZHUO Meng-qiong, LIU Qiang, ZHUO Wen-guang, LI Kun. OPTIMIZATION OF PARAMETERS IN ADVANCED TREATMENT OF LIVESTOCK WASTEWATER BY ALGAL-BACTERIA IMMOBILIZATION[J]. ENVIRONMENTAL ENGINEERING , 2021, 39(6): 42-48,166. doi: 10.13205/j.hjgc.202106007

Citation:

XIAO Cong-liang, GUO Yuan-tao, LIU Liang, XIN Jia-qi, ZHUO Meng-qiong, LIU Qiang, ZHUO Wen-guang, LI Kun. OPTIMIZATION OF PARAMETERS IN ADVANCED TREATMENT OF LIVESTOCK WASTEWATER BY ALGAL-BACTERIA IMMOBILIZATION[J]. ENVIRONMENTAL ENGINEERING , 2021, 39(6): 42-48,166. doi: 10.13205/j.hjgc.202106007

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OPTIMIZATION OF PARAMETERS IN ADVANCED TREATMENT OF LIVESTOCK WASTEWATER BY ALGAL-BACTERIA IMMOBILIZATION

doi: 10.13205/j.hjgc.202106007

1. School of Resources Environmental & Chemical Engineering, Nanchang University, Nanchang 330038, China;
2. Key Laboratory of Poyang Lake Environment and Resources Utilization, Ministry of Education, Nanchang University, Nanchang 330038, China

Received Date: 2020-08-04
Available Online: 2022-01-18

Abstract

Abstract

Artificial wastewater was used in this study, and parameters of the algae-bacteria immobilized pellets and the growth of microorganism were optimized based on treatment efficiency of livestock wastewater. The orthogonal experiment was designed for optimization of immobilized pellet strength, the growth of microorganism and removal efficiency, using multi-index full probability analysis and SPSS software analysis. The results were concluded as a set of parameters including the concentration of sodium alginate(SA) and calcium chloride(CaCl₂) and the immobilization time. Then, the response surface experiment designed by analysis software Design-Expert 10 were carried out to further optimize these parameters. The results showed that the optimized parameters of orthogonal experiment were SA concentration of 3%, the CaCl₂ concentration of 1%, and the immobilization time of 12 hours; finally, the optimal parameters obtained by response surface methodology were:SA concentration of 4%, CaCl₂ concentration of 0.5%, and immobilization time of 6 hours; under the optimal condition, the immobilized pellets strength, microalgae growth rate, TN removal rate reached-13.58%, 0.193 and 89.55%, respectively.
- algae-bacteria embedded immobilization,
- advanced treatment,
- method of multi-index full probability analysis,
- orthogonal test,
- response surface methodology

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References(26)

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