Bio-removal of combined pollution of V(V) and Cr(VI) in a continuous flow reactor with straw

Vanadium (V) and chromium (Cr) are the key resources widely used in industrial production, but the mining process may cause V (V) and Cr (VI) pollution in groundwater, seriously endangering human health and ecological environment. Straw is an important by-product in the process of agricultural production. It is considered as waste in China, but it is also a solid carbon source. Therefore, this study used straw as carbon source to explore the feasibility of bioremediation of V (V) and Cr (VI) compound pollution in groundwater.Microbial analysis showed that Bacillus and pseudobacteroides had the ability to reduce V (V) and Cr (VI), Cellulomonas is related to the decomposition of cellulose in straw.