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Volume 2 Journal of Environmental Research
Page 74
JOINT EVENT
July 26-27, 2018 Rome, Italy
&
6th Edition of International Conference on Water Pollution & Sewage Management
4th International Conference on Pollution Control & Sustainable Environment
The industrial use of microalgae for wastewater treatment and mitigation of environment degradation
Armen B Avagyan
Research & Industry Centre of Photosynthesizing Organisms, Armenia
The industrial use of microalgae for wastewater purification based on their mixotrophic growth is alternative important
approaches as microalgae has higher stability, which enables their application in more concentrated and toxic environment,
with a higher purification level compared with activated sludge. In our experiment the separate use Chlorella microalgae for
purification wastewater of phenylalanine manufacturing with high quantity of phenol was the sole decision for biological
cleaning as activated sludge cannot help in such case. Generation of the symbiosis between bacteria of activated sludge and
microalgae in wastewater treatment plant (WTP) aeration oxidation ponds must be also a general way of improving wastewater
cleaning, as microalgae is also a cost effective flocculent, which allows the silts to settle more quickly, accumulates heavy metals,
etc. On the development technology for Yerevan chemical reagents and vitamin plants industrial WTP, we recommended two
phase biological purification: first phase by the use Chlorella with commercial production of biomass (only using of activated
sludge was no sustainable due high concentration of organic components) and at second phase – transfer centrate with rest
amount of microalgae cells to aero thanks with activated sludge aimed to formation bacteria-microalgae consortium. We offer
also the addition of microalgae biomass in tailings ponds of Canadian oil sands operators aimed at the improvement of the
microbial balance for the water speedily cleaning, recycling and reusing from arsenic, cyanide, naphthenic acids, mercury,
sulphuric acid, carcinogenic polycyclic aromatic hydrocarbons with mitigation of GHG emission, etc. For this objective the
use of microalgae biomass may be in the following variants: the use accounted volume of non-separated microalgae suspension
produced by the use of food scraps, the centrate to inject into the tailing ponds for creating the microalgae-bacteria symbiosis.
J Environ Res 2018, Volume: 2