CAJ | 학술논문

采用超声波预处理餐厨垃圾以提高产挥发性脂肪酸(VFAs)产率.结果表明,在超声强度720W/L下处理15min后,餐厨垃圾SCOD含量比原样中SCOD提高了1倍,其中有机质中碳水化合物溶出量最大,由原样中8.2g/L提高到处理后的43.5g/L；在pH=6、温度35℃条件下,对含固率约为12%的餐厨垃圾进行厌氧发酵,未预处理和超声处理后的餐厨垃圾产生的VFAs最大值分别达到33.4,42.5g/L,经超声预处理的餐厨垃圾产VFAs的量提高了27.2%.
채용초성파예처리찬주랄급이제고산휘발성지방산(VFAs)산솔.결과표명,재초성강도720W/L하처리15min후,찬주랄급SCOD함량비원양중SCOD제고료1배,기중유궤질중탄수화합물용출량최대,유원양중8.2g/L제고도처리후적43.5g/L；재pH=6、온도35℃조건하,대함고솔약위12%적찬주랄급진행염양발효,미예처리화초성처리후적찬주랄급산생적VFAs최대치분별체도33.4,42.5g/L,경초성예처리적찬주랄급산VFAs적량제고료27.2%.
The study aims at improving the efficiency producing volatile fatty acids (VFAs) by ultrasonic pre-treatment and meanwhile overcomes the disadvantages such as the complexity of components and inequality of particles. Under the condition of treatment time of 15min, and ultrasonic intensity of 720W/L, the SCOD dissolution significantly increased, which was twice as the results of original samples. Among the SCOD dissolved, carbohydrate had the highest dissolution, which was increased from 8.2g/L to 43.5g/L. Under the condition of pH of 6and temperature of 35℃, the maximum values of VFAs from untreated and ultrasonic-treated food waste with solid content ration of around 12% were 33.4, 42.5g/L, separately. VFAs from food waste after ultrasonic treatment were increased by 27.2%.