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對順酐生產廢水的來水先進行隔油處理，即設置或配備一座/多座隔油調節池，通過重力流的方式將浮油截留至一個隔油池中，定期進行處理；隔油調節池出水則投加強酸及異構劑藥劑在58℃-63℃下進行反應半小時，再降溫冷卻使廢水中的順丁烯二酸形成富馬酸，富馬酸在高溫下會溶解，因此可通過對廢水進行加熱，而后在進入二級處理工藝進行處理。

The incoming water from the production of maleic anhydride should be treated with oil separation first, that is, one or more oil separation regulating tanks should be set up or equipped, and the floating oil should be intercepted into an oil separation tank through gravity flow for regular treatment; The effluent from the oil separation regulating tank is treated with strengthening acid and isomer agents at 58 ℃ -63 ℃ for half an hour, followed by cooling to form fumaric acid from the maleic acid in the wastewater. fumaric acid dissolves at high temperatures, so the wastewater can be heated and then treated in the secondary treatment process.

二級處理考慮土建成本、設備投入成本及藥劑成本，選用生化處理，即厭氧處理工藝的不完全厭氧——水解酸化工藝、完全厭氧反應處理——厭氧反應池和接觸氧化方式或活性污泥處理方式的好氧處理。在以往的廢水處理中通過抽樣對順酐廢水好氧出水進行檢測，其中COD、氨氮等污染物指標都明顯降低，可達到業主要求的排放標準。若標準較嚴者，則可考慮加深度處理配合使用，如混凝終沉、微電解反應罐等方式進行配合處理，確定處理后廢水能穩定、持續地達標排放。具體使用哪種順酐廢水處理工藝或哪幾種工藝結合處理可根據實際情況進行一對一針對處理制定。

The secondary treatment considers civil engineering costs, equipment input costs, and chemical costs, and selects biochemical treatment, namely incomplete anaerobic hydrolysis acidification process of anaerobic treatment process, complete anaerobic reaction treatment anaerobic reaction tank, and aerobic treatment of contact oxidation or activated sludge treatment method. In previous wastewater treatment, aerobic effluent from maleic anhydride wastewater was tested through sampling, and pollutant indicators such as COD and ammonia nitrogen were significantly reduced, meeting the discharge standards required by the owner. If the standard is stricter, it can be considered to use advanced treatment in combination, such as coagulation final sedimentation, micro electrolysis reaction tank, etc., to ensure that the treated wastewater can be stably and continuously discharged to meet the standard. The specific treatment process for maleic anhydride wastewater or the combination of several processes can be developed one-on-one according to the actual situation.

順酐是一種重要的化工原料，其生產過程中會產生一定的廢水，廢水中含有順酸、乙酸、丙烯酸等有機污染物，COD濃度值高，且廢水的可生化性欠缺，由于廢水中高COD濃度值會對水處理過程中的微生物有強烈的抑制作用，因此，在水處理過程中應先將廢水中不可溶性的有機物通過破壞其鏈狀或環狀的連接鍵斷開，從而使水處理的微生物對其處理難度降低；生產來水中會有部分的油類物質，需對其油類物質進行截留。

Maleic anhydride is an important chemical raw material, which generates a certain amount of wastewater during its production process. The wastewater contains organic pollutants such as maleic acid, acetic acid, acrylic acid, etc. The COD concentration value is high, and the biodegradability of the wastewater is insufficient. Due to the strong inhibitory effect of high COD concentration in the wastewater on microorganisms in the water treatment process, therefore, In the process of water treatment, insoluble organic matter in wastewater should be first broken by breaking its chain or ring like connection bonds, so as to reduce the difficulty of microbial treatment of water treatment; There will be some oily substances in the incoming water during production, and their oily substances need to be intercepted.

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Thank you for reading. The source of this article is from the manufacturer of maleic anhydride. For more information and questions, please click: http://www.724ad.com We will continue to work hard to provide you with services. Thank you for your support!