CAJ | 학술논문

对采用厌氧折流板反应器(ABR)处理难降解退浆废水的启动过程进行了研究.实验结果表明:经过90 d的运行,反应器在32～34℃、上流速度8 m/h、水力停留时间6 d、COD容积负荷1.80 kg/(m3·d)的条件下,COD去除率达到55%以上,启动成功.出水COD稳定在4 500 mg/L左右,碱度约为700～850 mg/L.运行情况表明,启动初期反应器各隔室的pH变化较大,有效控制pH是系统启动成功的关键.启动后期,各隔室pH稳定在6.8～7.3之间,挥发性脂肪酸(VFA)质量浓度为300～500mg/L.随着隔室的横向推移,污泥的SS、VSS和SS/VSS不断增大,推测反应器中厌氧微生物相分离现象显著.
대채용염양절류판반응기(ABR)처리난강해퇴장폐수적계동과정진행료연구.실험결과표명:경과90 d적운행,반응기재32～34℃、상류속도8 m/h、수력정류시간6 d、COD용적부하1.80 kg/(m3·d)적조건하,COD거제솔체도55%이상,계동성공.출수COD은정재4 500 mg/L좌우,감도약위700～850 mg/L.운행정황표명,계동초기반응기각격실적pH변화교대,유효공제pH시계통계동성공적관건.계동후기,각격실pH은정재6.8～7.3지간,휘발성지방산(VFA)질량농도위300～500mg/L.수착격실적횡향추이,오니적SS、VSS화SS/VSS불단증대,추측반응기중염양미생물상분리현상현저.
The start-up of anaerobic bamed reactor(ABR) for treating desizing wastewater has been studied. The results show that: after the start-up of the ABR has run for 90 d, and when the reactor is at 32-34 ℃, the up-removal rate is above 55%, the COD of outflow is about 4 500 mg/L, the alkalinity is between 700 mg/L to 850 mg/L. The running situation indicates that since the pH of each compartment at the early days of the start-up varies greatly, to control the pH efficiently is an important key of the start-up. At the latter days of the start-up, the pH of each compartment keeps stably from 6.8 to 7,3, and the concentration of volatile fatty acid (VFA) is from 300 mg/L to 500 mg/L. Along with the transverse process of compartments, the SS, VSS and SS/VSS of sludge grow greatly, it is predicted that anaerobic microorganism phases in the ABR has been separated distinctly.