CAJ | 학술논문

利用连续流2450MHz的电磁波污泥脱水装置,对2种不同的污泥进行均匀性试验,得到加载功率270W、加载时间200s、加载泥量150mL工况最优.该工况下,污泥离心含水率、沉降含水率、SV分别由原泥的90.46%、96.35%、88%下降到87.32%、95.55%、76%,比阻由2.37×109m/kg升高至1.22×1010m/kg ,在同等离心条件下,经过2450MHz电磁波处理的污泥体积比不经电磁波处理的体积减少了25%.加载后,TN、TP、SCOD的最大溶出倍数分别达到了17.69、9.50和40.11,EPS降低61.9%,与现有的微波加载实验结果对比发现,在原泥比阻值较低情况下,连续流状态下比阻值未降反增,但污泥胞内物质的溶出倍数明显更大,能有效降低 EPS,改善污泥脱水性能,表明了2450MHz电磁波动态污泥脱水的效果更好.
이용련속류2450MHz적전자파오니탈수장치,대2충불동적오니진행균균성시험,득도가재공솔270W、가재시간200s、가재니량150mL공황최우.해공황하,오니리심함수솔、침강함수솔、SV분별유원니적90.46%、96.35%、88%하강도87.32%、95.55%、76%,비조유2.37×109m/kg승고지1.22×1010m/kg ,재동등리심조건하,경과2450MHz전자파처리적오니체적비불경전자파처리적체적감소료25%.가재후,TN、TP、SCOD적최대용출배수분별체도료17.69、9.50화40.11,EPS강저61.9%,여현유적미파가재실험결과대비발현,재원니비조치교저정황하,련속류상태하비조치미강반증,단오니포내물질적용출배수명현경대,능유효강저 EPS,개선오니탈수성능,표명료2450MHz전자파동태오니탈수적효과경호.
The optimal condition of continuous inflow sludge dewatering with 2450MHz electromagnetic wave was examined by the homogeneity tests with two different sludge. Based on the test, the system was optimally operated under the power of 270W, time of 200s and sludge loading of 150mL. Under the optimal condition, the centrifugal water content, settled water content and SV of the excess sludge dropped from 90.46%, 96.35%, 88% to 87.32%, 95.55%, 76%respectively. SRF increased from 2.37×109 to 1.22×1010m/kg, and the volume of sludge was 25%less than those which were operated without 2450MHz electromagnetic wave. In addition, the biggest solubilization mulriple of TN, TP and SCOD was 17.69, 9.50 and 40.11 respectively, while EPS of sludge decreased 61.9%. To sludge of low SRF, as compared with other existed experiments, SRF didn’t decrease but increase, while the solubilization ratio of intracellular substance was much higher, and EPS decreased obviously simultaneously with better sludge dewaterability. In summary, dynamic continuous inflow sludge dewatering was better than static ones with 2450MHz electromagnetic wave.