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SBR污水處理工藝詳解
發(fā)布時間：
2024-04-26 08:17
SBR是序批式活性污泥法的簡稱，又稱間歇式活性污泥法，是一種間歇曝氣方式來運行的活性污泥工藝。
相較于其他工藝不同只需在一個池體內(nèi)按照時間順序變成不同的反應(yīng)階段。
工作過程分為進水階段、反應(yīng)階段、沉淀階段、閉水階段、待機階段。
第一步：從進水開始達到設(shè)備最大容積結(jié)束。
第二步：反應(yīng)時可根據(jù)不同微生物的生長特點、污水的性質(zhì)和要達到處理效果，采用非限制曝氣、半限制曝氣、和限制曝氣方式運行，通過控制反應(yīng)室中污水的溶解氧達到厭氧、缺氧、好氧反應(yīng)環(huán)境，完成多種處理功能，不僅可以達到去除有機物的目的，而且可以取得脫氮和除磷的效果。
第三步：沉淀階段，目的是進行固液分離相當于二沉池沉淀時間通常設(shè)置為1—1.5小時，直至污泥絮體和上清液分離
第四布：閉水階段是從反應(yīng)器中使用潷水器將上清液排出，一直排放到最低水位。
到下次進水開始為待機階段，可在該階段進行多余污泥排放。
該設(shè)備具備占地面積小、構(gòu)造簡單、投資低、運行成本低、脫氮除磷效果高等優(yōu)點。
SBR is the abbreviation of sequential batch activated sludge method, also known as intermittent activated sludge method, which is an activated sludge process operated by intermittent aeration method.
Compared with other processes, it only takes one pool to change to different reaction stages in chronological order.
The work process is divided into water inlet stage, reaction stage, precipitation stage, closed water stage and standby stage.
Step 1: From the beginning of water intake to the end of the maximum volume of the equipment.
Step 2: According to the growth characteristics of different microorganisms, the nature of the sewage and the treatment effect to achieve, it can be operated by non-restricted aeration, semi-limited aeration, and limited aeration. By controlling the dissolved oxygen of the sewage in the reaction chamber, it can achieve anaerobic, hypoxia and aerobic reaction environment, and complete a variety of treatment functions. In order to achieve the purpose of removing organic matter, and the effect of nitrogen removal and phosphorus removal can be achieved.
Step 3: The purpose of the sedimentation stage is to carry out solid-liquid separation, which is equivalent to the precipitation time of the second sedimentation tank, which is usually set to 1-1.5 hours until the sludge floc and the supernatant are separated.
Fourth cloth: The closed water stage is to discharge the supernatant by using a decanter in the reactor until the lowest water level.
The next water intake is in the standby stage, and excess sludge can be discharged at this stage.
The equipment has the advantages of small footprint, simple structure, low investment, low operating cost, and high nitrogen and phosphorus removal effect.
SBR污水處理工藝詳解
