Influence of nutrient loads, feeding frequency and inoculum source on growth of Chlorella vulgaris in digested piggery effluent culture medium

Bioresource Technology
Martin S KumarSandy K Wyatt

Abstract

Large amount of waste produced in the livestock industry could be reused to produce valuable products such as microalgae, which are used predominantly in the primary treatment of wastewater for bioremediation. In this study digested piggery effluent was used as nutrient source to substitute mineral nutrients for culturing feed grade Chlorella vulgaris. Two experiments were conducted to investigate the effect of total ammonia nitrogen (TAN) levels, inoculum mediums and the feeding frequencies on the performance of C. vulgaris. The first experimental results showed that 20mg TAN/l in the culture media resulted in better algal SGR (0.345/day; P>0.05). The adding 200 ml effluent into 10 l culture medium at the start (20.6 mg TAN/l) in the second experiment resulted in a large increase of algal population from day 1 to 6 and reached 11.9 million algae/ml at day 6. This study indicated that high production of C. vulgaris could be achieved at short time by feeding digested effluent once.

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Citations

Dec 20, 2013·Environmental Technology·Ahmed E M AbdelazizPatrick C Hallenbeck
Feb 15, 2016·The Science of the Total Environment·Valeria TiginiGiovanna Cristina Varese
Dec 29, 2012·Journal of Environmental Management·Reda A I Abou-ShanabByong-Hun Jeon
Jan 19, 2016·Trends in Biotechnology·Ao Xia, Jerry D Murphy
Sep 14, 2011·Bioresource Technology·Su HongyangLi Jinpeng
Nov 15, 2014·International Journal of Phytoremediation·Jinfeng DingShujun Li
Jun 22, 2016·The Science of the Total Environment·Marta FranchinoFrancesca Bona
Sep 8, 2016·Bioresource Technology·Liandong ZhuZhaohua Li
Aug 14, 2018·Water Science and Technology : a Journal of the International Association on Water Pollution Research·Mariana Daniel TangoEduardo de Aguiar do Couto
Mar 8, 2019·Water Environment Research : a Research Publication of the Water Environment Federation·Shiqing SunJie Xu
Jul 22, 2016·Water Science and Technology : a Journal of the International Association on Water Pollution Research·Xiaowei LiHongyun Sun
Sep 29, 2017·Frontiers in Microbiology·Tânia V FernandesDedmer B Van de Waal
Aug 12, 2017·Frontiers in Bioengineering and Biotechnology·Pramod Pandey, Jun Shi
Dec 30, 2020·Water Environment Research : a Research Publication of the Water Environment Federation·Bing XuYongjun Zhao
Oct 12, 2019·Microorganisms·Talita BeylRobert W M Pott

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