MECHANISM OF PHOSPHORUS REMOVAL FROM BIOGAS SLURRY BY <i>OEDOGONIUM</i> SP.

WANG Hai-ping; LIU Feng; ZHENG Li-guo; WU Jin-shui; CHEN Xiang

doi:10.13205/j.hjgc.202109006

Volume 39 Issue 9

Jan. 2022

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WANG Hai-ping, LIU Feng, ZHENG Li-guo, WU Jin-shui, CHEN Xiang. MECHANISM OF PHOSPHORUS REMOVAL FROM BIOGAS SLURRY BY OEDOGONIUM SP.[J]. ENVIRONMENTAL ENGINEERING , 2021, 39(9): 37-41. doi: 10.13205/j.hjgc.202109006

Citation:

WANG Hai-ping, LIU Feng, ZHENG Li-guo, WU Jin-shui, CHEN Xiang. MECHANISM OF PHOSPHORUS REMOVAL FROM BIOGAS SLURRY BY OEDOGONIUM SP.[J]. ENVIRONMENTAL ENGINEERING , 2021, 39(9): 37-41. doi: 10.13205/j.hjgc.202109006

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MECHANISM OF PHOSPHORUS REMOVAL FROM BIOGAS SLURRY BY OEDOGONIUM SP.

doi: 10.13205/j.hjgc.202109006

1. Changsha Environmental Protection College, Changsha 410004, China;
2. Key Laboratory of Agro-ecological Processes in Subtropical Regions, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha 410125, China

Received Date: 2021-01-21
Available Online: 2022-01-21

Abstract

Abstract

It is a kind of green economy wastewater treatment method to use the optimized microalgae for secondary treatment of swine wastewater, which has considerable application prospect. Combining isotope tracer method and path analysis, the phosphorus metabolic and mechanism analysis in biogas slurry by Oedogonium sp. were studied, in order to provide theoretical basis for practical application of Oedogonium sp. in digested wastewater treatment. During the experiment, Chl-a content in the biogas slurry reached 3.35 mg/L, 3.13 times of the initial content, and the TP removal rate was 91.22%. The analysis of TP removal mechanism showed that the microbial residues in the wastewater had little influence on TP removal. It was difficult to form gaseous phosphine from biogas slurry into the atmosphere under aerobic state. About 30% of TP was removed by phosphate precipitation under alkaline condition with the synergistic effect of cation such as Ca²⁺ and Mg²⁺. TP decrease was mainly caused by the algal incorporation and phosphate precipitation. About 60% of TP was removed by microalgae assimilation. The DO value should be reduced and the N/P ratio should be maintained for further improving TP removal rate.
- algal culture,
- Oedogonium sp.,
- isotope tracer,
- biogas slurry,
- path analysis

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References(24)

References

[1]	王善高,田旭,张晓恒.生猪养殖产业集聚对环境效率影响的研究[J].农业现代化研究,2019,40(3):459-469.
[2]	刘国,刘国,胡凤妹,等.不同基质的人工湿地去除猪场沼液中磷的性能[J].环境工程,2014,32(10):55-60.
[3]	李清,胡启春,祝其丽,等.高含氮养殖污水厌氧-好氧组合处理实验研究[J].环境科学与技术,2012,34(12):189-193.
[4]	邱俊,徐晓云,吴志勇,等.间歇A/O+MBR工艺在猪场沼液处理中的应用[J].水处理技术,2016,42(5):136-138.
[5]	WANG H P,HU Z Q,XIAO B,et al.Ammonium nitrogen removal in batch cultures treating digested piggery wastewater with microalgae Oedogonium sp.[J].Water Science & Technology,2013,68(2):269.
[6]	乔佳珂,邱洪臣,程金凤,等.小球藻在沼液中的油脂累积及净化效应[J].环境工程,2019,37(11):87-91 ,24.
[7]	LENG L J,WEI L,XIONG Q,et al.Use of microalgae based technology for the removal of antibiotics from wastewater:a review[J].Chemosphere,2020,238:124680.1-124680.14.
[8]	MAHDY A,MENDEZ L,BALLESTEROS M,et al.Algaculture integration in conventional wastewater treatment plants:anaerobic digestion comparison of primary and secondary sludge with microalgae biomass[J].Bioresource Technology,2015,184:236-244.
[9]	LI Y,XIAO G Q,MANGOTT A,et al.Nutrient efficacy of microalgae as aquafeed additives for the adult black tiger prawn,Penaeus monodon[J].Aquaculture Research,2016,47(11).
[10]	LIU C X,SUBASHCHANDRABOSE S,MING H,et al.Phycoremediation of dairy and winery wastewater using Diplosphaera sp.MM1[J].Journal of Applied Phycology,2016,28(6):3331-3341.
[11]	WANG H P,ZHENG L G,SHE J R,et al.Mechanisms of ammonium removal from digested piggery wastewater by Oedogomium sp.Assessed via isotope mass balance analysis[J/OL].Journal of Civil and Environmental Engineering,2021,43(1):176-183.
[12]	WANG H P,LIU F,LUO P,et al.Allelopathic effects of Myriophyllum aquaticum on two cyanobacteria of Anabaena flos-aquae and Microcystis aeruginosa[J].Bulletin of Environmental Contamination & Toxicology,2017,98(4):556-561.
[13]	王洁玉,陈艳,李杲光.3种微量元素对小球藻和小环藻生长的影响[J].环境科学与技术,2018,41(9):55-60.
[14]	BHOWMICK G D,SEN R,SARMAH A K.Analysis of growth and intracellular product synthesis dynamics of a microalga cultivated in wastewater cocktail as medium[J].Biochemical Engineering Journal,2019,149:107253.
[15]	高艳玲,赵庆建,张旭红,等.进水pH值对悬浮载体生物流化床处理效能影响的研究[J].北京师范大学学报(自然科学版),2009,45(3):301-303.
[16]	李晓伟,魏群,陈延飞,等.pH对藻类生物膜脱氮除磷的影响研究[J].环境工程,2016,34(8):74-78.
[17]	TRIPATHI R,GUPTA A,THAKUR I S.An integrated approach for phycoremediation of wastewater and sustainable biodiesel production by green microalgae,Scenedesmus sp.ISTGA1[J].Renewable Energy,2019,135(MAY):617-625.
[18]	王卓艺.污水处理系统中磷的转化途径[J].科技情报开发与经济,2007,17(32):154-156.
[19]	HAI X U,ZHAO-PU L,LAN Y,et al.Effect of pH on growth of several freshwater algae[J].Environmental Ence & Technology,2009.
[20]	VARSHNEY P,SOHONI S,WANGIKAR P P,et al.Effect of high CO₂ concentrations on the growth and macromolecular composition of a heat- and high-light-tolerant microalga[J].Journal of Applied Phycology,2016,28(5):1-10.
[21]	李鑫,胡洪营,张玉平.无机碳源对栅藻LX1生长及油脂积累特性的影响[J].环境科学,2011,32(8):2260-2266.
[22]	KATAM K,BHATTACHARYYA D.Effect of solids retention time on the performance of alga-activated sludge association in municipal wastewater treatment and biofuel production[J].Journal of Applied Phycology,2020,32(3):1803-1812.
[23]	马红芳,庄黎宁,李飞.2种新分离微藻的生长、氮磷去除和营养特性的比较研究[J].环境工程学报,2013,7(11):4377-4382.
[24]	ABEDI S,ASTARAEI F R,GHOBADIAN B,et al.Decoupling a novel Trichormus variabilis-Synechocystis sp.interaction to boost phycoremediation[J].Scientific Reports,2019,9(1):2511.