TECHNOLOGY FOCUS - ENVIRONMENT - Preferred Material: The compost raw material used in the process is feces, urine sludge, organic refuse, foodstuff, feed, fertilizer and/or sludge. The resin finishing goods is multifilm from agriculture, refuse bags, water drip nets, foam, containers, pile and/or nets. Preferred Process: The composting involves degrading the compost raw material preferably waste material of resin finishing goods which contains biodegradable polymeric material to form organic acid. The process also involves addition of microorganisms and an air permeable material to the compost raw material. Preferred Ratio: The ratio of the polymeric material in the compost raw material is 10:90-90:10.    TECHNOLOGY FOCUS - POLYMERS - Preferred Material: The polymeric material which is decomposed to an organic acid is a biodegradable resin of aliphatic (polyester, polyamide, polyester amido and/or polyvinyl alcohol).    TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Compound: The homopolymerized mixture of aliphatic polyester in the biodegradable resin contains (a) hydroxy carboxylic acid preferably lactic acid, glycolic acid, lactide and/or glycolide; (b) Lactones preferably epsilon-caprolactone, 4-methyl caprolactone, 3,5,5(3,3,5)-trimethyl caprolactone, beta-propio lactone, gamma-butyrolactone, delta-valerolactone and/or enante lactones; and (c) aliphatic dicarboxylic acid and aliphatic diols are preferably succinic acid, oxalic acid, adipic acid, ethylene glycol, 1,4-butanediol and/or neopentyl glycol. EXAMPLE - Sludge containing human waste which had 83% moisture was mixed with sawdust, spawn and polycaprolactone in a ratio of 5:14:1:7. The mixture was added to a stainless steel net provided in a mini reactor. The initial pH and the moisture content of the compost raw material in the reactor was adjusted to 7.2 and 60% respectively. The mixture was then incubated at 60 degrees C for 6 days. The volume of exhaust gas collected was measured using a total flow meter and the concentration of carbon dioxide and ammonia in the collected exhaust gas was determined using a gas detector. The compost was effectively obtained by the degradation of the sludge which was accelerated by the addition of polycaprolactone.