【正文】 Export Co.,Ltd. 13 型號： 4PW 流量： 10。 Export Co.,Ltd. 12 BIC anaerobic reactor Adjusting pool Water inlet 2200 45000 25000 5000 180 ~ Water outlet 1800 500 700 ~ Removal rate 96% 98% The first sedimentation tank Water inlet 2200 1800 500 ~ Water outlet 1600 480 400 ~ Removal rate 5% 4% Contact oxidation tank Water inlet 2200 1600 480 700 ~ Water outlet 480 96 560 6－ 9 Removal rate 70% 80% 20% The secondary sedimentation tank A/O reacting pool Water inlet 2200 480 96 2500 560 Water outlet 240 40 150 28 6－ 9 Removal rate 50% 60% 94% 95% Water discharge 2200 240 40 150 22 6－ 9 Required discharging criterion 300 150 200 25 69 第四章 工藝設(shè)計說明 Chapter Four Explanation of process design 第一節(jié) 廢水處理系統(tǒng) Section One Wastewater treatment system 一、調(diào)節(jié)池 / Regulation pool 經(jīng)板框壓濾后廢水水質(zhì)、水量不均勻不連續(xù)，為保證后續(xù)構(gòu)筑物連續(xù)穩(wěn)定的運行，設(shè)調(diào)節(jié)池來調(diào)節(jié)廢水的水質(zhì)、水量。 青 島 國 橋 進 出 口 有 限 公 司 Qingdao ChinaBridge Import amp。 Water out of the anaerobic reactor ( BIC ) treatment partly flows to the first sedimentation, the first sedimentation water outlet partly reflow to the BIC, the other water enters the contact oxidation pool to remove most of the anic matter, at the same time, transfer NHN into N2 and remove it. The outlet water of oxidation pool flows to the secondary sedimentation, where the sludge partly return to A/O. The supernatant will be discharged when reaches the mark. 污泥主要來自 BIC 厭氧反應(yīng)器、一沉池污泥、二沉池剩余污泥。 There are many grains contained in spent wash from the workshop. First carry out the dehydration proposal and then out transport the slag. 脫糟后的廢水自流進入調(diào)節(jié)池，調(diào)節(jié)廢水的水質(zhì)水量等，然后通過提升泵到 BIC，同時進入 BIC 的還有一沉池回流水，在 BIC 內(nèi)利 用厭氧菌將廢水中的有機物分解成甲烷、二氧化碳等氣體，去除廢水中的大部分有機物。 Export Co.,Ltd. 10 concentrated NHN. That means, the following treatment shall not adopts routine process but process with denitrifying function. This project use A/O technique to denitrify the N. 第二節(jié) 工藝方案的確定 Section Two Process plan 一、工藝流程 / Process flow 綜上所述，確定本污水處理工藝為厭氧采用 BIC 厭氧反應(yīng)器，好氧采用 A/O 活性污泥法。 本工程中采用 A/O 法作為好氧脫氮處理工藝。 According to above parison, bined with instability of wastewater flow volume and quality, as well as the big impact on the water treatment facilities, select BIC anaerobic reactor as anaerobic treatment process. 二、好氧工藝方案的選擇 / Aerobic process 酒 精廢水中含有大量的蛋白質(zhì)類物質(zhì)，這些物質(zhì)經(jīng)厭氧分解后轉(zhuǎn)化為氨氮。 ⑥ Because the reasons of cycle, BIC reaction zone has different hydraulic load for upside and downside. The downside has higher up flow rate, ensuring the mass transfer and mix for wastewater and sludge. The upside has lower up flow rate, ensuring the sludge settlement without huge affect. If the up flow rate if UASB reactor exceeds 1m/h, the sludge will lose. ⑦ BIC 多旋流式布水采用了少量的大口徑布水管，出口流速可以達到 35m/s 以上，可以有效的防止結(jié)垢和堵塞。 ④ The sudden increase for inlet water concentration or capacity will result in load impact for the anaerobic reactor. Because of the internal circle action, at the moment of wastewater entering the BIC, the gas output will increase. The big circulating load will dilute the high concentrated wastewater quickly and reduce the impact to the reactor. The UASV reactor is different. When the anic load suddenly increased, the increased gas output will bring sludge out of the reactor. Seriously, it will cause vicious circle or failure for whole reactor. ⑤ 高的水力負荷和多旋流式的布水能最大程度的保證布水均勻， UASB 大多采用的是多點式布水，并且水力負荷較低，因此布水均勻性不如 BIC。 UASB 反應(yīng)器則不然，有機 青 島 國 橋 進 出 口 有 限 公 司 Qingdao ChinaBridge Import amp。在 UASB 中污泥與廢水混合不勻，將導(dǎo)致部分污泥受到毒性抑制；而在 BIC 反應(yīng)器內(nèi)，由于大的內(nèi)循環(huán)作用使污泥與廢水充分混合，能最大程度的釋稀可能的毒性，降低其抑制作用。 Note: ① The anic load of BIC reactor is 48 times of UASB reactor. The anic load of UASB reactor is usually 38kgCOD / , while the BIC reactor is up to 1530kgCOD / . ② 因 BIC 有機負荷比 UASB 高，因此處理同樣規(guī)模的有機廢水， BIC 反應(yīng)器的容積比 UASB 小，故 BIC 反應(yīng)器的占地面積低。 The key for BIC running is using granular sludge to inoculate. The below is granular sludge brought up by our pany. （三）厭氧方案的確定 / Anaerobic plan 針對以上這兩種厭氧工藝的進行比較，可得結(jié)論如下： Compare above two anaerobic plans, thus, achieve below conclusion” 工 藝 方 案 比 較 表 指 標 / Target BIC UASB 顆粒污泥照片 青 島 國 橋 進 出 口 有 限 公 司 Qingdao ChinaBridge Import amp。 Export Co.,Ltd. 7 mixed liquor is taken up to the gasliquid separator, where the biogas is separated and the mixed liquor reflows to the tank bottom and blend with the inlet water of BIC anaerobic reactor. It forms the self internal circle of anaerobic tank. 廢水通過提升裝置后進入上部低負荷區(qū)（精處理區(qū)），進一步降解廢水中的有機物，混合液通過上部的三相分離器時進行顆粒污泥、水、沼氣的分離，沼氣通過沼氣管道排出，污泥則回流到厭氣罐底部保持生物量，而沉淀后的水通過出水堰進入后續(xù)構(gòu)筑物。沼氣通過提升裝置時，由于沼氣的提升作用，沼氣連同一部分混合液被提升到罐頂部的氣液分離器，沼氣在氣液分離器里被分離出來，分離后的混合液再通過回流管回流到罐的底部，與進入 BIC 厭氧反應(yīng)器的進水混合，形成了厭氧罐自身的內(nèi)循環(huán)。 in which ② Low load area: It is polishing unit, area, the hydraulic load and sludge load is lower. So the anic matter will be effectively removed from the wastewater. ③ 沉降區(qū)： BIC反應(yīng)器頂部為污泥沉降區(qū)，有機物已基本去 除，廢水中的少量懸浮物在本區(qū)內(nèi)進一步進行沉降，保證 BIC