TY JOUR TI DEVELOPMENT AND STUDY OF BIOREACTORFOR APPLICATION BIO-FERTILIZERS AND BIOGAS KW bioreactor KW bio-fertilizer KW biogas KW fermentation KW mixing KW heat exchanger KW agitator. JO Vestnik of Kazan State Agrarian University AU Shekhikachev , Y.. AU Apazhev, A.. AU Fiapshev, A.. PY 2016 IS 11 PB Kazan state agrarian University