0023-6152

AA00697606

1955656

This study blended different proportions of Sorghum Distillery Residue (SDR) and Japanese Cedar Sawdust (JCS) in Wine Sludge (WS), extruded by a self–made mold and developed into Sludge Biochar Medium Pellet (SBMP). SDRMP (WS with SDR) and JCSMP (WS with JCS) were derived at different carbonization temperatures. The property, porosity and water absorption/desorption of both pellets were evaluated. The iodine value of SDRMP and JCSMP were 73.93–185.87 mg/g and 110.46–214.45 mg/g. The water absorption of SDRMP–40–450 (40% SDR with WS at carbonization temperature 450ºC) was 129%, while that of JCSMP–40–300 was 191%. The pH of SDRMP was 6.81–9.63, while that of JCSMP was 7.02–9.50. The CEC of SDRMP–40–450 was 35.24 cmol/kg, while that of JCSMP–40–450 was 35.21 cmol/kg. To investigate the degradability, and feasibility of being a functional culture medium in agriculture, all SBMPs were mixed with peat to obtain Sludge Biochar Medium Pellet Peats (SBMPP), including SDRMPP and JCSMPP. The physicochemical properties of various SBMPPs could meet the standard of an ideal culture medium. According to one month’s test for degradability, JCSMP was still kept a higher percent weight, but it was lower for SDRMP.