CAJ | 학술논문

研究了NaOH投加量对剩余污泥水解的影响，考察了在不同NaOH投加量条件下，pH值、溶解性化学需氧量(SCOD)、可溶性蛋白质、可溶性总糖及挥发性悬浮固体(VSS)的变化情况，来反映有机物的溶出情况，同时表征碱预处理对污泥水解效果的优劣．研究结果显示，在碱投加量为0～16,g/100,g SS 的条件下，提取液中 pH 值可达7.17～12.57，SCOD 质量浓度达236～4907,mg/L，蛋白质质量浓度为5～664,mg/L，总糖质量浓度为29～378,mg/L，且各参数整体随碱浓度增大而增大，NaOH预处理对促进剩余活性污泥水解的效果显著．
연구료NaOH투가량대잉여오니수해적영향，고찰료재불동NaOH투가량조건하，pH치、용해성화학수양량(SCOD)、가용성단백질、가용성총당급휘발성현부고체(VSS)적변화정황，래반영유궤물적용출정황，동시표정감예처리대오니수해효과적우렬．연구결과현시，재감투가량위0～16,g/100,g SS 적조건하，제취액중 pH 치가체7.17～12.57，SCOD 질량농도체236～4907,mg/L，단백질질량농도위5～664,mg/L，총당질량농도위29～378,mg/L，차각삼수정체수감농도증대이증대，NaOH예처리대촉진잉여활성오니수해적효과현저．
The effect of sodium hydroxide(NaOH)dosage on sludge hydrolysis was studied in this paper. The dissolution of organic matter and the effect of alkaline pretreatment on sludge hydrolysis were represented by the investigation of the varia-tion conditions of the pH value,soluble chemical oxygen demand(SCOD),soluble protein,total soluble sugar and the volatile suspended solid(VSS)under the condition of various NaOH dosages. Results showed that when NaOH dosage was 0~16g/100g SS,the pH value was 7.17~12.57,the concentrations of SCOD,soluble protein,total soluble sugar of the treated sludge could reach 236~4 907 mg/L,5~664 mg/L and 29—664 mg/L respectively. With the increase of the alkali dosage,the concentrations of these indicators increased rapidly,which proved that NaOH pretreatment had dramatic effect on the improvement of excess activated sludge hydrolysis.