Nutrient removal from swine wastewater using a thermotolerant strain of Chlorella sp. grown under outdoor conditions

2020 ◽  
Author(s):  
Miriam L Gracida‐Valdepeña ◽  
Fernanda Navarro‐Aguirre ◽  
Karla Herrera‐Acosta ◽  
Gabriela Ulloa‐Mercado ◽  
Edna Meza‐Escalante ◽  
...  
Keyword(s):  
Nutrient Removal ◽  
Swine Wastewater ◽  
Chlorella Sp ◽  
Thermotolerant Strain

scholarly journals Exploration of Microalgal Species for Nutrient Removal from Anaerobically Digested Swine Wastewater and Potential Lipids Production

2021 ◽  
Vol 9 (12) ◽  
pp. 2469
Author(s):  
Zhihui Chen ◽  
Yunhua Xiao ◽  
Tan Liu ◽  
Mingmin Yuan ◽  
Gang Liu ◽  
...  
Keyword(s):  
Nutrient Removal ◽  
Lipid Production ◽  
Ammonia Nitrogen ◽  
Biodiesel Production ◽  
Swine Wastewater ◽  
Biomass Composition ◽  
Chlorella Sp ◽  
Growth Performances ◽  
Lipids Production ◽  
Nitrogen Phosphorus

Bio-treatment of anaerobically treated swine wastewater (ADSW) mediated by microalgae has been deemed as a promising strategy. In the present study, six microalgal strains were used to conduct batch experiments in 0~100% ADSW in order to evaluate their potentials for nutrient removal and biodiesel production. Two strains, Chlorella vulgaris FACHB-8 and Chlorella sp. FACHB-31, were selected based on their better growth performances, higher tolerance to wastewater (up to 100%), and better nutrient removal abilities. The capacity of each strain to remove TN, TP, NH4+-N, as well as lipid production and biomass composition in 100% ADSW were further examined. After 15 days of culture, 87.68~89.85%, 92.61~93.68%, and 97.02~97.86% of the nitrogen, phosphorus, and ammonia nitrogen were removed by Chlorella sp. FACHB-31 and C. vulgaris FACHB-8. Their lipid content and lipid productivities were 29.63~33.33% and 18.91~23.10 mg L−1 d−1, respectively. Proteins were both the major biomass fraction followed by lipids and then carbohydrates. Their fatty acid profiles both mainly consisted of C-16:0, C-18:1, C-18:0, and C-18:2. Taken together, our results suggest that C. vulgaris FACHB-8 and Chlorella sp. FACHB-31 are potential candidates for biodiesel production by using ADSW as a good feedstock.

Nutrient removal from high ammonium swine wastewater in upflow microaerobic biofilm reactor suffered high hydraulic load

2019 ◽  
Vol 233 ◽  
pp. 69-75 ◽  
Author(s):  
Jia Meng ◽  
Jiuling Li ◽  
Jiamin He ◽  
Jianzheng Li ◽  
Kaiwen Deng ◽  
...  
Keyword(s):  
Nutrient Removal ◽  
Biofilm Reactor ◽  
Swine Wastewater ◽  
Hydraulic Load

Nutrient removal by duckweed from anaerobically treated swine wastewater in lab-scale stabilization ponds in Vietnam

2020 ◽  
Vol 722 ◽  
pp. 137854 ◽  
Author(s):  
Thi To Uyen Dinh ◽  
Satoshi Soda ◽  
Thi An Hang Nguyen ◽  
Jun Nakajima ◽  
The Ha Cao
Keyword(s):  
Nutrient Removal ◽  
Swine Wastewater ◽  
Stabilization Ponds

Effect of zinc ions on nutrient removal and growth of Lemna aequinoctialis from anaerobically digested swine wastewater

2018 ◽  
Vol 249 ◽  
pp. 457-463 ◽  
Author(s):  
Qi Zhou ◽  
Yan Lin ◽  
Xiang Li ◽  
Chunping Yang ◽  
Zhenfeng Han ◽  
...  
Keyword(s):  
Nutrient Removal ◽  
Swine Wastewater ◽  
Zinc Ions

Comparison in growth, lipid accumulation, and nutrient removal capacities of Chlorella sp. in secondary effluents under sterile and non-sterile conditions

2013 ◽  
Vol 69 (3) ◽  
pp. 573-579 ◽  
Author(s):  
Qiao Zhang ◽  
Yu Hong
Keyword(s):  
Growth Rates ◽  
Nutrient Removal ◽  
Lipid Accumulation ◽  
Algal Biomass ◽  
Algal Growth ◽  
Chlorella Sp ◽  
Algal Lipid ◽  
Secondary Effluents ◽  
Removal Efficiencies ◽  
Biomass Increase

The growth, lipid accumulation and nutrient removal characteristics of an oleaginous microalga Chlorella sp. HQ in two types of secondary effluents (named as X and Q) before/after sterilization were evaluated. The results show that the algal growth rates under sterilization were higher than those under non-sterilization. However, sterilization caused a significant decrease in algal lipid and triacylglycerol (TAG) contents in both X and Q. And the lipid and TAG yields in non-sterile X were as much as 2.7 and 7.7 times higher than those in sterile X, reaching up to 51.3 and 16.1 mg L−1, respectively. However, the sterilization caused algal biomass increase in sample Q. Sterilization or not had almost no effect on the total phosphorus (TP) removal ability of Chlorella sp. HQ and it was found to have similar abilities to remove almost 100.0% TP from samples X and Q. While the total nitrogen (TN) removal efficiencies were promoted slightly under non-sterilization, increasing from 88.5 to 89.7% in X and from 13.3 to 17.2% in Q. Hence, non-sterile circumstances are basically beneficial for Chlorella sp. HQ to accumulate its lipid (TAGs) and remove nutrients from wastewater.

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