Question

环境专业文献翻译

High strength slaughterhouse wastewater was treated in four 42 l anaerobic sequencing batch reactors (ASBRs) operated at 30°C,
25°C and 20°C. The wastewater contained between 30% and 53% of its chemical oxygen demand (COD) as suspended solids (SS).
The ASBRs could easily support volumetric organic loading rates (OLRs) of 4.93, 2.94 and 2:75kg=m3=d (biomass OLRs of 0.44,
0.42 and 0.14 g/g volatile SS (VSS)/d) at 30°C, 25°C and 20°C, respectively. At all operating temperatures, the total COD (TCOD)
and soluble COD (SCOD) were reduced by over 92%, while average SS removal varied between 80% and 96%. Over the experimental
period, 90.8%, 88.7% and 84.2% of the COD removed was transformed into methane at 30°C, 25°C and 20°C, respectively.
The decrease in the conversion of the COD removed into methane as operating temperature was lowered, may be partly explained
by a lower degradation of in¯uent SS as temperature was reduced. The reactors showed a high average methanogenic activity of
0.37, 0.34 and 0.12 g CH4-COD=gVSS=d (22.4, 12.7 and 11.8 l/d) at 30°C, 25°C and 20°C, respectively. The average methane
content in the biogas increased from 74.7% to 78.2% as temperature was lowered from 30°C to 20°C
At 30°C, results are given on the two maximum OLRs that were fed to the reactors under steady-state condition. At 25°C and 20°C, results at the OLR fed during the reactor adaptation period to the new operating temperature and at the OLR fed during steady-state operation are presented。
上面正文中有个单词显示错了 in¯uent 其实应该是inffluent 是进水的意思

Answer 1

四42 L的厌氧序批式反应器处理屠宰废水的高强度（ASBR）在30°C操作，
25°C和20 C 30%和°废水的化学需氧量（COD）53%之间的悬浮固体（SS）。
这可以很容易地支持ASBR容积有机负荷率（OLRs）4.93，2.94和2:75kg = M3 = D（0.44生物系统，
0.42和0.14克/克挥发性SS（VSS）/ D）在30°C，25°C和20°C，分别。在所有的操作温度，总COD（TCOD）
和可溶性COD（SCOD）减少了92%以上，而平均SS去除率80%和96%之间变化。在实验
期间，90.8%，88.7%和84.2%的COD去除在30°C转化为甲烷，25°C和20°C，分别。
在对COD去除成甲烷作为操作温度的降低转化率下降，部分原因可能是
由一个较低的降解温度降低进水SS。该反应器具有较高的平均产甲烷活性
0.37，0.34和0.12克ch4-cod = gVSS量= D（22.4，12.7和11.8 L / D）在30°C，25°C和20°C，分别。平均甲烷
在沼气含量从74.7%增加到78.2%，温度从30降低到20°°C C
在30°C，结果在两个最大的系统，被送入反应器稳态条件下。在25°C和20°C，结果在OLR供给反应堆的适应期的新的操作温度和在美联储在稳态操作期间OLR。