CAJ | 학술논문

在EGSB反应器中添加PVA凝胶颗粒处理高浓度废水。保持进水量一定，逐渐增加反应器内进水COD质量浓度，即2．2～12．9g／L，相应的有机负荷率是5．4～51．79g／（L?d）。观察反应器的运行情况，确定有机负荷率在30 g／（L?d ）时，COD去除率最高可以达到96％。增大负荷，同时保证进水的pH值是7．0，观察反应器出水pH值与VFA的变化，确定适宜产甲烷菌生长的环境。从收集到的气体体积来看，在一定的范围内，气体产率随着进水负荷的提高而增加，当负荷达到30 g／（L?d ）时，气体体积可达38 L （实验最大值）。
재EGSB반응기중첨가PVA응효과립처리고농도폐수。보지진수량일정，축점증가반응기내진수COD질량농도，즉2．2～12．9g／L，상응적유궤부하솔시5．4～51．79g／（L?d）。관찰반응기적운행정황，학정유궤부하솔재30 g／（L?d ）시，COD거제솔최고가이체도96％。증대부하，동시보증진수적pH치시7．0，관찰반응기출수pH치여VFA적변화，학정괄의산갑완균생장적배경。종수집도적기체체적래간，재일정적범위내，기체산솔수착진수부하적제고이증가，당부하체도30 g／（L?d ）시，기체체적가체38 L （실험최대치）。
PVA-gel beads are added to the EGSB reactor to treat high -concentration wastewater in this experiment .The influent COD level is increased stepwise from 2 .2 g/L to 12 .9 g/L under stable influent and the organic loading rate is changed relatively 5 .4~51 .79 g/(L?d) .The COD removal rate can reach 96% with an organic loading rate of 30 g/(L?d) in the reactor .While the organic loading rate is increased and the influent pH is kept at 7 .0 ,the changes of effluent pH and VFA are observed ,thus the appropriate growth environment for methanogens can be determined .In a certain range ,the gas production rate is increased with the increase of influent loading rate .When the organic loading rate reaches 30 g/(L?d ) , the gas volume can be increased to its peak (38 L ) .