CAJ | 학술논문

针对制浆造纸废水厌氧处理启动时间长,运行效果较差的问题,采用处理酿酒废水厌氧颗粒污泥接种UASB,开展了为期90 d处理黄竹制浆造纸废水的工艺研究。结果表明,历时24 d UASB启动成功,此时, CODCr去除率﹑出水VFA的质量浓度﹑产气量分别为58%﹑178.0 mg∕L﹑4 L∕d。 UASB处理该废水的最佳条件为：进水CODCr的质量浓度为3700 mg∕L, pH值为7.5, HRT为8 h,有机负荷小于12 kg[CODCr]∕(m3?d),反应器运行温度为35℃。在该条件下运行7 d,出水CODCr的平均质量浓度为1328 mg∕L, CODCr平均去除率为64%,出水VFA的平均质量浓度约为187.1 mg∕L,出水pH值约为8.2,平均产气量约为14 L∕d。 UASB具有良好的耐冲击负荷能力和恢复能力,在承受22 kg[CODCr]∕(m3?d)的有机负荷冲击5 d后反应器仍可在4 d内恢复正常运行。
침대제장조지폐수염양처리계동시간장,운행효과교차적문제,채용처리양주폐수염양과립오니접충UASB,개전료위기90 d처리황죽제장조지폐수적공예연구。결과표명,력시24 d UASB계동성공,차시, CODCr거제솔﹑출수VFA적질량농도﹑산기량분별위58%﹑178.0 mg∕L﹑4 L∕d。 UASB처리해폐수적최가조건위：진수CODCr적질량농도위3700 mg∕L, pH치위7.5, HRT위8 h,유궤부하소우12 kg[CODCr]∕(m3?d),반응기운행온도위35℃。재해조건하운행7 d,출수CODCr적평균질량농도위1328 mg∕L, CODCr평균거제솔위64%,출수VFA적평균질량농도약위187.1 mg∕L,출수pH치약위8.2,평균산기량약위14 L∕d。 UASB구유량호적내충격부하능력화회복능력,재승수22 kg[CODCr]∕(m3?d)적유궤부하충격5 d후반응기잉가재4 d내회복정상운행。
In view of the existing problems of pulping and papermaking wastewater treatment such as: long starting time of anaerobic reactor and poor treatment effect, taking the anaerobic granular sludge adopted for brewing wastewater treatment as the seed sludge, the treatment of Dendrocalamus membranaceus Munro pulping and papermaking wastewater using UASB reactor which lasted 90 days was studied. The results showed that, UASB reached a plateau after 24 days, and at that moment, the removal rate of CODCr reached 58%, the mass concentration of VFA in the effluent water was 178.0 mg/L, and the gas production rate was 4 L/d. The optimal condition for the said kind of wastewater treatment by UASB was:the influent mass concentration of CODCr was 3 700 mg/L, the pH value was 7.5, the HRT was 8 h, the organic load was lower than 12 kg[CODCr]/(m3?d), the operating temperature of the reactor was 35 ℃. After a 7-d operation under the above conditions, the average mass concentration of CODCr in the effluent water was 1 328 mg/L with an average removal rate of 64%, the av‐erage mass concentration of VFA was 187.1 mg/L, the pH value of the effluent water was about 8.2, the average gas production rate was 14 L/d. It could be seen that, UASB had good shock loading resisting and recovery capa‐bility, therefore, even had been suffered the organic loading impact as high as 22 kg[CODCr]/(m3?d) for 5 days, the reactor could still resume normal operation within 4 days.