CAJ | 학술논문

污泥焚烧底灰的处理处置与资源化利用是污泥焚烧过程中必须解决的难题。该文通过对两种不同的污泥焚烧底灰的粒径、抗剪、压缩固结性、渗透性以及重金属含量等理化性质进行了研究，并将其与原生污泥性质进行对比，分析焚烧处理对污泥理化性质的影响，并进一步根据焚烧底灰性质，探索其再利用途径。结果表明污泥焚烧底灰属于砂土，且抗剪强度较污泥焚烧前有明显增大，可达76．23～80．03 kPa；重金属含量有所超标，但重金属浸出量均小于相应标准限定值，可进行路基材料、CO2捕集、填海造陆等再利用。
오니분소저회적처리처치여자원화이용시오니분소과정중필수해결적난제。해문통과대량충불동적오니분소저회적립경、항전、압축고결성、삼투성이급중금속함량등이화성질진행료연구，병장기여원생오니성질진행대비，분석분소처리대오니이화성질적영향，병진일보근거분소저회성질，탐색기재이용도경。결과표명오니분소저회속우사토，차항전강도교오니분소전유명현증대，가체76．23～80．03 kPa；중금속함량유소초표，단중금속침출량균소우상응표준한정치，가진행로기재료、CO2포집、전해조륙등재이용。
The problem of disposal and utilization of bottom ash of sewage sludge incineration in sludge incineration process must be solved. In this paper,the physicochemical properties in terms of particle size,shear,compression consolidation,permeability,heavy metals content of two different kinds of bottom ash of sewage sludge incineration were studied and compared with the original sewage sludge properties to analyze the effect of incineration on sewage sludge treatment. The reuse technology of bottom ash of sewage sludge incineration was also explored based on its physicochemical properties. The results show that bottom ash of sewage sludge incineration belongs to sandy soil,and the shear strength significantly increases after the incineration,which can reach 76. 23 ~80. 03 kPa;the heavy metal content is over standard,while the heavy metal leaching amount is less than the corresponding standard limit. It can be used in subgrade materials,CO2 capture and sea reclamation.