Activated sludge water treatment method

1. Ntshiab oxygen aeration txoj kev. Thawj cov pa oxygen aeration dej phwj tuaj kho thawj zaug tau tsim nyob rau hauv Tebchaws Meskas hauv xyoo 1968. Vim tias tus nqi qis dua ntawm kev tsim cov pa oxygen, cov pa ntshiab oxygen aeration tau dav siv.
2. Txoj kev sib sib zog nqus dej aeration. Ua kom qhov tob ntawm lub aeration tank tuaj yeem ua kom lub siab ntawm cov dej hauv pas dej ua ke, yog li ua kom cov dej solubility ntawm cov pa oxygen hauv dej, thiab qhov sib xyaw ntawm cov pa oxygen yog sib npaug. Yog li ntawd, cov pa yaj nyob rau hauv cov dej sib sib zog nqus aeration tank yog siab dua li ntawm qhov zoo tib yam aeration tank, feem ntau nce lub pas dej tob los ntawm qhov qub 4 m mus txog 10 m.
3. Txoj kev dav hlau aeration. Cov kua sib xyaw ua ke ntawm cov dej phwj tuaj thiab cov sludge hla dhau ntawm lub ejector, thiab lub siab tsis zoo yog tsim los ntawm cov dav hlau ceev ceev, kom cov huab cua loj heev yog nqus rau hauv, thiab huab cua tau sib cuag nrog cov kua sib xyaw, uas txhim kho cov pa oxygen nqus ntawm cov dej phwj tuaj, yog li txhim kho kev ua haujlwm ntawm cov dej phwj tuaj kho. txhim kho.
4. Siv tshuaj coagulant thiab activated carbon txoj kev. Dosing chemical coagulant thiab activated carbon nyob rau hauv lub aeration tank ntawm activated sludge txoj kev yog sib npaug rau kev kho lub cev thiab tshuaj thaum ua kev kho mob biochemical. Cov pa roj carbon activated kuj tseem siv tau los ua cov kab mob ntawm cov kab mob thiab pab hauv kev sib haum xeeb ntawm cov khib nyiab. Kev tshem tawm tus nqi ntawm BOD thiab COD tau txhim kho, thiab cov dej zoo huv si.
5. Kev tiv thaiv kab mob oxidation. Qhov no yog ib txoj kev kho dej phwj tshiab nrog cov yam ntxwv ntawm ob qho tib si activated sludge method thiab biofiltration method. Nws hloov lub dav dav aeration tank nrog cov kev sib cuag oxidation tank, thiab hloov cov feem ntau siv sedimentation tank nrog cov hu rau sedimentation tank.
6. Pipeline aeration. Txoj kev no yog ua kom cov dej phwj tuaj aerate cov activated sludge nyob rau hauv lub siab yeeb nkab, thiab nyob rau tib lub sij hawm nqa tawm ib tug ntev kev thauj mus los. Vim tias cov khoom siv tsawg dua, cov nqi peev thiab cov nqi khiav lag luam tuaj yeem raug txo.