Cargando…

Co-cultivation of Rhodotorula glutinis and Chlorella pyrenoidosa to improve nutrient removal and protein content by their synergistic relationship

With the continuous development of the livestock breeding industry, the amount of piggery wastewater discharged increases year by year, and the pressure of controlling environmental pollution continuously increases. A novel method using a co-culture of Chlorella pyrenoidosa and Rhodotorula glutinis...

Descripción completa

Detalles Bibliográficos
Autores principales: Li, Huankai, Zhong, Yuming, Lu, Qian, Zhang, Xin, Wang, Qin, Liu, Huifan, Diao, Zenghui, Yao, Chuang, Liu, Hui
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Royal Society of Chemistry 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9064018/
https://www.ncbi.nlm.nih.gov/pubmed/35519326
http://dx.doi.org/10.1039/c9ra01884k
_version_ 1784699276468682752
author Li, Huankai
Zhong, Yuming
Lu, Qian
Zhang, Xin
Wang, Qin
Liu, Huifan
Diao, Zenghui
Yao, Chuang
Liu, Hui
author_facet Li, Huankai
Zhong, Yuming
Lu, Qian
Zhang, Xin
Wang, Qin
Liu, Huifan
Diao, Zenghui
Yao, Chuang
Liu, Hui
author_sort Li, Huankai
collection PubMed
description With the continuous development of the livestock breeding industry, the amount of piggery wastewater discharged increases year by year, and the pressure of controlling environmental pollution continuously increases. A novel method using a co-culture of Chlorella pyrenoidosa and Rhodotorula glutinis in piggery wastewater was proposed in this study, which was aimed at treating piggery wastewater and producing useful products. The results showed that the optimal inoculum ratio of algae to yeast was 3 : 1 in the wastewater, which achieved the removal efficiencies of 58.53%, 36.07%, 33.20% and 56.25% for ammoniacal nitrogen (NH(3)-N), total nitrogen (TN), total protein (TP) and chemical oxygen demand (COD), respectively, after 6 d. The synergistic relationship of C. pyrenoidosa and R. glutinis was preliminarily validated using the oxygen/carbon dioxide exchange balance and scanning electron microscopy images. The co-cultivation system gained 59.8% (w/w) protein within 5 d which can be used as a feed additive, and produces aquatic animals with better growth and quality. Thus, the 1000 litre pilot scale bioreactor was used indoors and removed 82.65% of TN, 53.51% of TP, 93.48% of NH(3)-N and 85.44% of COD in 21 d which gave a better performance for TN (p < 0.05) than the bench scale results. This system improves the nutrition removal and protein production efficiencies, and is a promising method for piggery wastewater treatment and the pig breeding industry.
format Online
Article
Text
id pubmed-9064018
institution National Center for Biotechnology Information
language English
publishDate 2019
publisher The Royal Society of Chemistry
record_format MEDLINE/PubMed
spelling pubmed-90640182022-05-04 Co-cultivation of Rhodotorula glutinis and Chlorella pyrenoidosa to improve nutrient removal and protein content by their synergistic relationship Li, Huankai Zhong, Yuming Lu, Qian Zhang, Xin Wang, Qin Liu, Huifan Diao, Zenghui Yao, Chuang Liu, Hui RSC Adv Chemistry With the continuous development of the livestock breeding industry, the amount of piggery wastewater discharged increases year by year, and the pressure of controlling environmental pollution continuously increases. A novel method using a co-culture of Chlorella pyrenoidosa and Rhodotorula glutinis in piggery wastewater was proposed in this study, which was aimed at treating piggery wastewater and producing useful products. The results showed that the optimal inoculum ratio of algae to yeast was 3 : 1 in the wastewater, which achieved the removal efficiencies of 58.53%, 36.07%, 33.20% and 56.25% for ammoniacal nitrogen (NH(3)-N), total nitrogen (TN), total protein (TP) and chemical oxygen demand (COD), respectively, after 6 d. The synergistic relationship of C. pyrenoidosa and R. glutinis was preliminarily validated using the oxygen/carbon dioxide exchange balance and scanning electron microscopy images. The co-cultivation system gained 59.8% (w/w) protein within 5 d which can be used as a feed additive, and produces aquatic animals with better growth and quality. Thus, the 1000 litre pilot scale bioreactor was used indoors and removed 82.65% of TN, 53.51% of TP, 93.48% of NH(3)-N and 85.44% of COD in 21 d which gave a better performance for TN (p < 0.05) than the bench scale results. This system improves the nutrition removal and protein production efficiencies, and is a promising method for piggery wastewater treatment and the pig breeding industry. The Royal Society of Chemistry 2019-05-07 /pmc/articles/PMC9064018/ /pubmed/35519326 http://dx.doi.org/10.1039/c9ra01884k Text en This journal is © The Royal Society of Chemistry https://creativecommons.org/licenses/by-nc/3.0/
spellingShingle Chemistry
Li, Huankai
Zhong, Yuming
Lu, Qian
Zhang, Xin
Wang, Qin
Liu, Huifan
Diao, Zenghui
Yao, Chuang
Liu, Hui
Co-cultivation of Rhodotorula glutinis and Chlorella pyrenoidosa to improve nutrient removal and protein content by their synergistic relationship
title Co-cultivation of Rhodotorula glutinis and Chlorella pyrenoidosa to improve nutrient removal and protein content by their synergistic relationship
title_full Co-cultivation of Rhodotorula glutinis and Chlorella pyrenoidosa to improve nutrient removal and protein content by their synergistic relationship
title_fullStr Co-cultivation of Rhodotorula glutinis and Chlorella pyrenoidosa to improve nutrient removal and protein content by their synergistic relationship
title_full_unstemmed Co-cultivation of Rhodotorula glutinis and Chlorella pyrenoidosa to improve nutrient removal and protein content by their synergistic relationship
title_short Co-cultivation of Rhodotorula glutinis and Chlorella pyrenoidosa to improve nutrient removal and protein content by their synergistic relationship
title_sort co-cultivation of rhodotorula glutinis and chlorella pyrenoidosa to improve nutrient removal and protein content by their synergistic relationship
topic Chemistry
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9064018/
https://www.ncbi.nlm.nih.gov/pubmed/35519326
http://dx.doi.org/10.1039/c9ra01884k
work_keys_str_mv AT lihuankai cocultivationofrhodotorulaglutinisandchlorellapyrenoidosatoimprovenutrientremovalandproteincontentbytheirsynergisticrelationship
AT zhongyuming cocultivationofrhodotorulaglutinisandchlorellapyrenoidosatoimprovenutrientremovalandproteincontentbytheirsynergisticrelationship
AT luqian cocultivationofrhodotorulaglutinisandchlorellapyrenoidosatoimprovenutrientremovalandproteincontentbytheirsynergisticrelationship
AT zhangxin cocultivationofrhodotorulaglutinisandchlorellapyrenoidosatoimprovenutrientremovalandproteincontentbytheirsynergisticrelationship
AT wangqin cocultivationofrhodotorulaglutinisandchlorellapyrenoidosatoimprovenutrientremovalandproteincontentbytheirsynergisticrelationship
AT liuhuifan cocultivationofrhodotorulaglutinisandchlorellapyrenoidosatoimprovenutrientremovalandproteincontentbytheirsynergisticrelationship
AT diaozenghui cocultivationofrhodotorulaglutinisandchlorellapyrenoidosatoimprovenutrientremovalandproteincontentbytheirsynergisticrelationship
AT yaochuang cocultivationofrhodotorulaglutinisandchlorellapyrenoidosatoimprovenutrientremovalandproteincontentbytheirsynergisticrelationship
AT liuhui cocultivationofrhodotorulaglutinisandchlorellapyrenoidosatoimprovenutrientremovalandproteincontentbytheirsynergisticrelationship