LWhen the unacclimated UASB reactor, acclimated UASB reactor and anerobic filter were shockcdy by the combined load, the largest increase of the effluent COD under combined load shocking was higher than that of the sum of chloroform (or 2,4-dinitrophenol, noted DNP) and COD load shocking independently.

2多負(fù)荷沖擊(COD+CF+DNP+ALK)按照正交試驗(yàn)來設(shè)計(jì)久久婷婷一级婬片A片AAA野外，反應(yīng)器UASB-RⅠ在多負(fù)荷沖擊時(shí)特级毛片WWW中文字幕无码，影響出水VFA的因素的主次順序?yàn)镃F＞COD＞DNP＞ALK亚洲欧洲一区二区三区久久；影響出水DNP的因素的主次順序依次為DNP＞CF＞COD＞ALK插进去很舒服视频；影響VGP和％CH_4的因素的主次順序分別為CF＞DNP＞COD＞ALK亚洲欧美日韩一区二区在线、CF＞DNP＞COD＞ALK少妇工地嫖妓毛片。

It was noteworthy that a large proportion of components contributable to residual COD were still unknown after biological treatment process, and the COD contributed by these components was even more than 50% of measured COD no matter whether the estimated COD of ammonia is neglected or not.

整個(gè)處理過程中還原性無機(jī)物和有機(jī)酸、醛酮類www黄片com、酚類對(duì)COD的貢獻(xiàn)較小亚洲欧美黄片日韩，在每一監(jiān)測(cè)點(diǎn)其所占COD測(cè)定值的比重之和均不超過9％久久精品亚洲精品无码白。

After the coagulation and sedimentation in the jar test with ferric chloride, the residual COD in the supernatant was 9000 mg/L which was further oxidized by chloric acid or with Fenton method. The COD removal efficient increased with the increasing of the dosage of chloric acid from 0.5 ~ 100 g/L or the H2O2/Fe2+ from 5/2.5 ~ 50/25 g/L, and the economical dosage were suggested as chloric acid 50 g/L or the H2O2/Fe2+ 50/25 g/L which resulted in the residual COD of 400 and 3300 mg/L individually for 95 and 63 % COD removal percentages. Oxidation test showed that only 5 minutes was needed for 92 % COD removal in the case of chloric acid dosage 50 g/L.

廢液A經(jīng)氯化鐵混凝沉淀后，COD濃度可降低至9久久影音先锋精品，000mg/L在线欧美一区二区，仍未符合符合工業(yè)區(qū)污水廠進(jìn)廠限值(＜650mg/L)，進(jìn)而使用氯酸鈉直接氧化法及Fenton法以去除剩余之COD99aaa视频，其操作條件范圍分別為氯酸鈉加藥量0.5g ~ 100g/L 一级a一级s爱片免免费免免高潮，而最適加藥量為50g/L，及Fenton法H2O2/Fe2+加藥量范圍為5/2.5g/L~50/25g/L18岁禁止黄色網站，其最適H2O2/Fe2+加藥量為50/25g/L日韩免费在线视频，兩種方法處理后殘余COD濃度分別為400mg/L及3300mg/L，去除率約為95%及63%2020黄色视频，而依此判斷氯酸鈉氧化處理殘余COD有較好之效果亚洲一区二区三区在线观看视频，且利用氯酸鈉氧化速率快，5分鐘就能有92%去除率成a人片在线观看，所需水力停留時(shí)間較短三级片在线免费观看网站视频，由此實(shí)驗(yàn)建議利用氯酸鈉直接氧化處理，最適加藥量為50g/L黄色网站38无码。

Cod：化學(xué)需氧量

在自主研發(fā)的過程中,奚旦立團(tuán)隊(duì)將研究目光鎖定在了一個(gè)叫做"化學(xué)需氧量 "(COD)的指標(biāo)上. COD越高則表明水體污染越嚴(yán)重. 奚教授說,國(guó)外多采用活性碳過濾吸附的方法來降低COD,效果雖好,但成本較高. 有什么辦法既能有效降低COD,

cod oil：鱈油

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Crystal Rock Cod：油泡石斑球

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