Abstract
The influences of iron and calcium carbonate (CaCO3) addition in wastewater treatments reactors performance were investigated. Adding different concentrations of Fe3+ (5, 10, 30 and 50 mmol/m3), iron and CaCO3 powder led to changes in algal characteristics and physico-chemical and microbiological properties. According to the investigation results, nutrient removal efficiency in algae based reactors was obviously increased by the addition of 10 mmol/m3 Fe3+, iron (5 mmol/m3) and CaCO3 powder (0.2 g m−3) and the removal efficiencies of BOD5, TN, and TP in Stage 2 were respectively increased by 28%, 8.9%, and 22%. The improvements in physico-chemical performances were verified by microbial community tests (bacteria quantity, activity and community measured in most probable number, extracellular enzymes activity, and Biolog Eco Plates). Microbial variations indicated the coexistence of Fe ions and carbonate–bicarbonate, which triggered the synergistic effect of physico-chemical action and microbial factors in algae based reactors.
Graphical abstract
We are No.18 Son Ha Minerals Company Limited, one of leading manufacturer and supplier on Calcium Carbonate powder in Vietnam. Our product is very suitable using on wastewater treatment performances of algae based reactors.
Our quality product:
· Whiteness: 90-95%
· Brightness: 85%
· Calcium content: 38%
· Fe2O3 content <0.05%
· MgO content <0.06%
If you want to know more information about product or price, please feel free contact with us.
No.18 Son Ha Minerals Company Limited
Factory: Mam Xoi Mountain, Thanh Son Commune, Kim Bang District, Ha Nam Province, VN
Telephone: +84 936 212 598
Hotline: +84 986 358 011 (Whatsapp / Wechat) - Mr. Thomas
Email: export2@shcgroup.vn
Skype: export2@shcgroup.vn
Sources: Bioresource Technology
