万吨糖蜜酒精生产线高浓度有机废水处理项目设计方案

万吨糖蜜酒精生产线高浓度有机废水处理项目设计方案
10万吨糖蜜酒精生产线
高浓度有机废水处理项目
100,000T molasses alcohol product line
high concentrated organic wastewater treatment project
工
艺
技
术
方
案
Process Technical Design
青岛国桥进出口有限公司（CBC）
Qingdao ChinaBridge Imp. & Exp. Co., Ltd（CBC）
二OO九年四月
第一章简介
Chapter One Summary
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我公司投资的10万吨糖蜜酒精，用甘蔗汁为原料产生废糖蜜经过发酵生产酒精，在生产酒精的过程中产生高浓度有机废水。

酒精废水未经处理就近排入水体，会造成一定程度的污染，因此，必须建设配套的污水处理设施。

The project of 100,000T molasses alcohol product line, use sugarcane juice as raw material to produce sugar cane juice, after fermentation, it produce alcohol. Meanwhile, high concentrated organic wastewater is brought out. If charge the waste water without treatment, it will result in pollution. Therefore, the matching waste water treatment is necessary to build.
工程规模为日处理酒精废水3372m3 /Project scale: deal with alcohol wastewater 3372 m3 per day.
污水处理采用厌氧—好氧处理工艺/ The wastewater treatment adopts anaerobic + aerobic process.
工程总投资为5821400美元/ The total investment is 5,821,400 U.S. dollars.
污水处理运行成本为0.225美元/m3。

The running cost for wastewater treatment is 0.225 U.S. dollars / m3.
第二章工程规模与处理程度
Chapter Two Project scale and treatment level
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第一节规模的确定
Section one Scale control
根据我公司对糖蜜酒精污水处理的治理经验，及厂方提供的数据，确定水量如下：
According to the experience on molasses alcohol wastewater treatment and information provided by the factory, the determined water quality is as follows:
糖蜜酒精酒糟水为3372 m3/d（含水93.4%）
Molasses alcohol distiller's grains water 3372
m3 / d (moisture content 93.4%)
经板框过滤后水量为2300 m3/d。

Water quantity after plate and frame filter
press is 2300 m3 / d.
第二节进水水质的确定
Section two Quality control of inflow water
参照同类生产企业的酒精废水参数，及公司确定精废水处理工程的进水水质设计为：
CODcr ≤80000mg/l（板框过滤前）CODcr ≤45000mg/l（板框过滤后）
BOD5 ≤25000mg/l SS ≤5000mg/l
NH3-N ≤180mg/l PH ：4—4.5
T ≤ 80℃
Referring to the molasses alcohol parameters of the same type manufacture factories and the determined wastewater value, the design is as follows:
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CODcr ≤80000mg/l（before plate and frame filter press）
CODcr ≤45000mg/l（after plate and frame filter press）
BOD5 ≤25000mg/l SS
≤5000mg/l
NH3-N ≤180mg/l PH ：
4—4.5 T ≤ 80℃
第三节污水处理程度的确定
Section Three Wastewater treatment level
污水处理工程对污水中主要污染物的处理程度是确定处理工艺的基本依据。

而处理程度主要依据污水处理厂出水受纳水体的水体标准和环境容量，依照国家颁布的有关排放标准来确定根据《中华人民共和国污水综合排放标准》（GB8978—1996），排入该水体的污水执行二级标准，即污水处理站的出水水质应达到：
In the wastewater treatment project, the disposal level for the main pollutants in wastewater is the basic criterion to design the process. The disposal level depends on the receiving water body of water standards and environmental capacity. In accordance with "the People's Republic of Integrated Wastewater Discharge Standard"
(GB8978-1996), execute the secondary effluent standards for wastewater discharged in the water
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body, that is, effluent water from wastewater treatment plant should meet the following quality:
CODcr ≤300mg/l BOD5 ≤150mg/l SS ≤200mg/l
PH ：6-9 NH3—N ≤25mg/l
根据进水水质和出水水质的要求，显然简单的机械处理不能满足要求，因此本工程将采用厌氧—好氧生物处理的方式以达到上述要求。

According to the requirements of inlet and outlet water quality, apparently simple mechanical processing cannot meet the requirements of this project. Therefore, anaerobic + aerobic process is adopt to meet above requirements.
第三章污水处理工艺的确定
Chapter Three Wastewater treatment process
第一节处理工艺选择
Section One Treatment process
污水处理工艺的选择直接关系到出水水质指标能否达到要求，关系到运行是否稳定可靠，管理是否方便以及投资和运行成本的高低。

因此，慎重选择适当的处理工艺是污水处理设计的关键。

The choice of wastewater treatment process will directly affect to the outlet water quality, steadily running, management, investment and operation cost. Therefore, careful selection of
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appropriate treatment technology is the key for wastewater treatment.
糖蜜酒精废水是高浓度、高温度的有机废水，因此简单的机械和物化的方法不能保证污水处理的稳定达标排放，高浓度有机废水如果直接进行好氧处理，势必会造成能耗过高，从而增加污水处理的运行成本，而单独的厌氧处理也不能直接达标排放。

因此，本污水处理工程采用厌氧+好氧的处理方法。

The molasses alcohol wastewater is organic wastewater with high concentration and high temperature. So simple mechanical and
physic-chemical method cannot guarantee the qualified discharge of wastewater. If directly use aerobic treatment for high concentrated organic wastewater, it will lead to high cost. And the anaerobic treatment alone cannot reach the requirement either.
Therefore, the wastewater treatment project adopts anaerobic + aerobic treatment.
一、厌氧工艺的选择 / Anaerobic process
目前应用于高浓度废水处理成熟的厌氧方案主要有UASB和BIC,因此针对这两种厌氧工艺进行比较如下：
At present, there are two kinds of mature process, UASB and BIC, to dispose the high concentrated wastewater. therefore, compare the both processes as follows:
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（一）UASB 厌氧反应器 / UASB anaerobic reactor
UASB 即为上流式厌氧污泥床反应器，为第二代厌氧反应器的典型代表。

整个反应器主体可分为两个区
域：
反应区和气、液、固三相分离区。

污水通过水泵提升到厌氧反应器的底部，利用底部的布水系统将污水均匀地布置在整个截面上，同时利用进水的出口压力和产气作用，使废水与高浓度的厌氧污泥充分接触和传质，将废水中的有机物降解。

废水在反应区缓慢上升，进一步降解有机物。

气体、水、污泥在同时上升过程中，沼气首先进入三相分离器内部通过管道排出，污泥和废水通过三相分离器的缝隙上升到分离区，污泥在分离区沉淀浓缩并回流到三相分离器的下部，保持厌氧反应器内的生物量，沉淀后的出水通过管道
排出罐外。

UASB is up-flow anaerobic sludge blanket reactor, it is the
typical
representative of the second generated anaerobic
UASB 反应器
沼气
reactor. The whole reactor can be divided into two regions: reaction zone and three-phase separation zone of gas, liquid and solid. Upgrade the wastewater to the bottom of anaerobic reactor by water pump, distribute the wastewater on the whole section by use of water distributor, meanwhile, utilize the outlet pressure and aerogenesis to make wastewater and high concentrated anaerobic sludge have enough contact and mass transfer, and finally degrade the organic matter in wastewater. The wastewater slowly rise in the reaction zone and further degrade the organic compounds. In the ascent process of gas, water and sludge, the biogas first enter the three-phase separator and then discharge through pipeline, meanwhile, the sludge and wastewater upgrade to the separation zone through the gap. The sludge concentrate and return back into the down part of three-phase separator to keep the biomass in anaerobic reactor, and the water after precipitation drainage through pipe.
（二）BIC厌氧反应器 / BIC anaerobic reactor
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BIC 为我公司自主开发研究的内外双循环厌氧反应器，代表了当今厌氧反应器的最高水平。

它是由布水器、提升装置、三相分离器、气液分离器、罐体及出水系统等组成。

BIC is internal and external double loops anaerobic reactor, researched and developed by our own company. It represents the highest level of present anaerobic reactor, composed by water distributor, upgrading device, three-phase separator, gas-liquid separator, tank, water discharge system, etc.
可以理解BIC 是由上、下两个UASB 组成的两个反应室，下反应室负荷高，上反应室负荷低，在反应器内部，对应分为三个反应区。

That is, the BIC is two reactors composed by upper and lower UASB. The lower reactor has high load and the upper reactor has lower load.
Inside the reactor, there are three reacting areas. ①高负荷区：借助于
本公司的专利防堵塞的布水系统，高浓度的有机废水均匀进入反应器底部，完成与反应器内污泥的充分混
合，
由于内循环作用、高的水力负荷和产气的搅动，导致反应器底部的高浓度的颗粒污泥呈良好的流化状态，使废水与污泥能够充分接触，如此良好的传质作用和较高的污泥活性保证了BIC反应器具有较高的有机负荷和有机物去除率。

①High-load area: With the company's patented anti-clogging water distribution system, high concentrated organic wastewater enters into the bottom of reactor, carry out the fully mixed with sludge. Due to the internal cycle affection, high water load and gas stirring, the high concentrated granular sludge is in good flow status, the wastewater and sludge will fully contact. Therefore, good mass transfer and high sludge activity ensure the organic load and removal rate for BIC reactor.
②低负荷区：低负荷区也是精处理区，在这个反应区内水力负荷和污泥负荷较低，因此可以有效的对废水中的有机物进行精处理。

②Low load area: It is polishing unit, in which area, the hydraulic load and sludge load is lower. So the organic matter will be effectively removed from the wastewater.
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③沉降区： BIC反应器顶部为污泥沉降区，有机物已基本去除，废水中的少量悬浮物在本区内进一步进行沉降，保证BIC出水水质。

③Settlement area: The top area of BIC reactor is settlement area. The organic matter has been basically removed and small amount suspended matter in wastewater will have further settlement, which ensures the BIC outlet water quality.
④基本原理：废水通过布水系统进入厌氧反应器的下部高负荷区，与颗粒污泥进行充分的混合和传质，将废水中大部分的有机物分解，产生大量的沼气。

沼气通过提升装置时，由于沼气的提升作用，沼气连同一部分混合液被提升到罐顶部的气液分离器，沼气在气液分离器里被分离出来，分离后的混合液再通过回流管回流到罐的底部，与进入BIC厌氧反应器的进水混合，形成了厌氧罐自身的内循环。

④Basic principle: The wastewater enters into the high load area in anaerobic reactor bottom through water distribution system. The wastewater and granular sludge have adequate mixture and mass transfer, upgrade the organic matter and bring out biogas. The biogas and part of the mixed liquor is taken up to the gas-liquid 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.
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废水通过提升装置后进入上部低负荷区（精处理区），进一步降解废水中的有机物，混合液通过上部的三相分离器时进行颗粒污泥、水、沼气的分离，沼气通过沼气管道排出，污泥则回流到厌气罐底部保持生物量，而沉淀后的水通过出水堰进入后续构筑物。

The wastewater gets into the up part low load area to degrade the organic matter for further. The mixed liquor separates the granular sludge, water and biogas by three-phase separator. The biogas discharge from the biogas pipe and the sludge reflow to the anaerobic tank bottom to keep the biomass.
BIC运行成功的关键因素是必须用颗粒污泥接种，以下是我公司在工业废水中培养的颗粒污泥。

The key for BIC running is using granular sludge to inoculate. The below is granular sludge brought up by our company.
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颗粒污泥照片
（三）厌氧方案的确定/ Anaerobic plan
针对以上这两种厌氧工艺的进行比较，可得结论如下：
Compare above two anaerobic plans, thus, achieve below conclusion”
工艺方案比较表
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m3.d，而BIC反应器的有机负荷可达到15-30kgCOD/ m3.d。

Note: ① The organic load of BIC reactor is 4-8 times of UASB reactor. The organic load of UASB
reactor is usually 3-8kgCOD / m3.d, while the
BIC reactor is up to 15-30kgCOD / m3.d.
②因BIC有机负荷比UASB高，因此处理同样规模的有机废水，BIC反应器的容积比UASB小，故BIC
反应器的占地面积低。

② As for the organic load, the BIC is higher than
UASB, thus, treating the same capacity
wastewater, the volume of BIC reactor is
smaller than UASB. In another word, the BIC
reactor will take smaller room.
③废水中的CL-、SO42-等可能会对厌氧处理有毒性。

在UASB中污泥与废水混合不匀，将导致
部分污泥受到毒性抑制；而在BIC反应器内，由于大的内循环作用使污泥与废水充分混合，能
最大程度的释稀可能的毒性，降低其抑制作用。

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③ The CL- and SO42- in wastewater may be
harmful to the anaerobic treatment process.
In the UASB, uneven mixture for sludge and wastewater will lead to toxic inhibition for
part of sludge. But in the BIC reactor, big
internal circle result in the fully mix for
sludge and water, which will crack the toxic as possible and reduce the inhibitory effect.
④进水浓度的突然增加或进水量的突然加大，都会对厌氧反应器造成负荷冲击，BIC因其内循环作用，
瞬间的高浓度废水进入反应器后，产气量大，气提量会随着增大，从而内循环量大，大的内循环量能将高浓度的废水迅速的释稀，从而减少了有机负荷变化对反应器的冲击。

UASB反应器则不然，有机负荷突然增大后，迅速增加的产气量会将污泥带出反应器，严重时会造成恶性循环，导致整个反应器失败。

④The 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
organic load suddenly increased, the
increased gas output will bring sludge out of
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the reactor. Seriously, it will cause vicious
circle or failure for whole reactor.
⑤高的水力负荷和多旋流式的布水能最大程度的保证布水均匀，UASB大多采用的是多点式布水，并
且水力负荷较低，因此布水均匀性不如BIC。

⑤ High hydraulic load and multi-cyclone water
distribution will maximum ensure the equally water distribution. The UASB mostly use
multipoint water distribution, which has low water load. Therefore, the BIC is better than UASB.
⑥因为内循环的原因，BIC上下反应区具有不同的水力负荷，下反应区具有较高的上升流速，保证了
废水与污泥的传质与混合，而上反应区的较低的上升流速，又保证了污泥的沉降不会受到大的影响，UASB反应器的上升流速大于1m/h时，会极易造成污泥的流失。

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径布水管，出口流速可以达到3-5m/s以上，可以有效的防止
结垢和堵塞。

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⑦ BIC cyclone water distribution adopts
large-diameter pipes, with the flow rate over
3-5m/s. It can effectively prevent fouling
and plugging.
根据上述的工艺比较，结合废水从生产车间的流量、水质不稳定，对废水处理设施冲击大的特点，选用BIC厌氧反应器作为厌氧处理工艺。

According to above comparison, combined 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、好氧工艺方案的选择 / Aerobic process
酒精废水中含有大量的蛋白质类物质，这些物质经厌氧分解后转化为氨氮。

因此，厌氧出水中含有浓度较高的氨氮，故后续的处理不能采用常规工艺，须用带有脱氮功能的工艺。

本工程中采用A/O法作为好氧脱氮处理工艺。

The alcohol wastewater contents a lot of protein matter, which will transfer into NH-N after anaerobic decomposition. Therefore, the outlet water of anaerobic process contents high concentrated NH-N. 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.
第二节工艺方案的确定
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Section Two Process plan
一、工艺流程 / Process flow
综上所述，确定本污水处理工艺为厌氧采用BIC厌氧反应器，好氧采用A/O活性污泥法。

In sum, the wastewater treatment process determines to use BIC reactor for anaerobic and
A/O active sludge process for aerobic.
废水处理工艺流程图见附件：
The wastewater treatment flow chart is as attached file.
二、工艺简介/ Process brief
车间过来的酒糟水含有大量的糟渣，首先进入脱水机房进行脱糟处理，脱出来的糟渣外运。

There are many grains contained in spent wash from the workshop. First carry out the dehydration proposal and then out transport the slag.
脱糟后的废水自流进入调节池，调节废水的水质水量等，然后通过提升泵到BIC，同时进入BIC的还有一沉池回流水，在BIC内利用厌氧菌将废水中的有机物分解成甲烷、二氧化碳等气体，去除废水中的大部分有机物。

The wastewater flow to the regulate pond to adjust the water quality and quantity. Then it is pump to the BIC, as well as the reflow water from the first sedimentation tank. In the BIC, the anaerobic organism degrade the organic matter into CH4, CO2 and other gas. Most of the organic matter is released.
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经过厌氧反应器（BIC）处理后的水自流到一沉池，一沉池出水一部分回流到BIC，剩余的水进入接触氧化池把水中大部分有机物去除，出水进入后续的A/O池，在A/O池内的好氧微生物将废水中剩余的有机物氧化分解，同时将大部分氨氮转化为氮气去除，氧化池出水自流到二沉池，二沉池沉淀的污泥一部分回流到A/O 池，上清液达标排放。

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 organic matter, at the same time, transfer NH-N 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.
污泥主要来自BIC厌氧反应器、一沉池污泥、二沉池剩余污泥。

污泥先排到污泥池，再到污泥浓缩池进行浓缩，然后送到脱水机脱水后外运。

The sludge is mainly from anaerobic reactor, first and secondary sedimentation. The sludge is first discharged to the sludge pond, then condensed in the sludge thickening tank and finally dehydrated by dewatering device.
三、各工序处理效果
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第四章工艺设计说明
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Chapter Four Explanation of process design
第一节废水处理系统
Section One Wastewater treatment system
一、调节池 / Regulation pool
经板框压滤后废水水质、水量不均匀不连续，为保证后续构筑物连续稳定的运行，设调节池来调节废水的水质、水量。

Wastewater after plate and frame filter has characters of non-uniform and non-continuous for water quality and quantity. To guarantee the steady running of subsequent structure, set regulation pool to adjust wastewater quality and quantity.
设计进水水量：Q = 2200 m3/d 设计HRT：6h 有效容积：550 m3总容积：600 m3
配套水泵：
型号：4PW 流量：100 m3/h 扬程：11m
功率：7.5kw 转速：960 数量：2台（1用1备）
Designed inlet water volume：Q = 2200 m3/d designed HRT：6h
effective capacity：550 m3total volume：600 m3
Matched water pump：Spec.：4PW
flow：100 m3/h lift：11m
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power：7.5kw speed rate：960 Qty：2 set （one in work the other for emergency）
二、BIC厌氧反应器 / BIC anaerobic reactor
废水从调节罐由泵提升至厌氧反应器内进行厌氧发酵：利用厌氧微生物在厌氧和适宜的温度及PH条件下，分解废水中的有机物，产生CH4、CO2、水和少量的其它气体，使高浓度的有机废水得以初步净化。

The wastewater from regulating pool is upgraded by pump to the anaerobic reactor to carry out anaerobic fermentation. Make use of anaerobic micro-organisms in the conditions of anaerobic, appropriate temperature and PH to decompose organic matter in wastewater and product CH4, CO2, water and a small number of other gases, so that high concentrations of organic wastewater is initially purified.
厌氧罐采用BIC厌氧反应器，它能够适应高浓度有机废水的负荷冲击。

废水由水泵送到厌氧罐底部的布水系统，与从气液分离器回流来的水混合，由于大量的回流水和高的产气负荷，混合水经过罐底部的颗粒污泥层时，能与颗粒污泥进行充分的混合和传质，使厌氧菌分解有机物始终保持很高的效率。

产生的气体则通过罐内中部的三相分离装置将气体、一部分水利用沼气的提升作用输送到罐顶部的气水分离装置，沼气通过水封送到沼气发电机组，分离水由管道自动回流到罐内底部，从而形成内循环；经过下三相分离器废水继续上升进入上部的精处理区，进一步降低废水中的有机物。

Anaerobic tank adopts BIC anaerobic reactor, which can adapt to the impact load of high concentration organic wastewater. The wastewater is send to the water distribution system on bottom of anaerobic tank by water pump and mixed with
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water returned from gas-liquid separator. Because of the returned water and high gas load, when passing the tank bottom layer, the mixed water will adequately mix and mass-transfer with granular sludge to keep the anaerobic decomposition of organic matter maintaining high efficiency. Passing through three-phase separator in the tank middle part, the gas and part water make use of the upgrading of methane and transport to the water separation devices on top of the tank. The methane is discharged or used by water seal, and the separated water automatically flow back to the tank bottom along pipeline. Therefore, the internal circulation is brought out. Through the bottom three-phase separator, the wastewater continues to rise into the upper essence treatment part to reduce the organic matter in waste water for further.
废水在厌氧发酵时最适宜的温度有中温（36±2℃）或高温（53±3℃），应根据该废水性质，选择高温厌氧发酵。

The suitable temperature for wastewater in anaerobic fermentation is middle temperature (36
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± 2 ℃) or high temperature (53 ± 3 ℃). It should base on the wastewater and select the appropriate anaerobic fermentation temperature.
厌氧菌中的产甲烷菌最适宜生长的PH值在6.8-7.2之间，而该类废水的PH值在6-7之间，因为废水进入厌氧罐后由于罐内废水的稀释作用和微生物作用，几乎瞬间就跟厌氧罐内的PH环境一至，而不用调节进水的PH值。

The suitable growth PH value of methanogen in anaerobe is between 6.8-7.2. For the wastewater after adjustment, the PH value is between 4.5-6. When the wastewater entering the anaerobic tank, there is no need to adjust the inlet water PH value because by the dilution and microbial action, the wastewater will immediately regulate the PH value to the same as environment in the anaerobic tank.
1、BIC厌氧反应器 / BIC anaerobic reactor
设计流量：Q =2200 m3/d 设计进水COD：45000mg/l
设计出水SCOD（溶解性COD）：2000mg/l 工作温度：55℃-58℃
容积负荷：11kgCOD/ m3·d 有效容积：V = 9000 m3
数量：6座单座规格：Ø 12m×17m
Designed flux：Q =2200 m3/d
designed water inlet: COD：45000mg/l
Designed water outlet SCOD（soluble COD）：2000mg/l work temperature：55℃-58℃
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Capacity load：11kgCOD/ m3·d
effective capacity：V = 9000 m3
Qty：6 sets
unit Spec.：Ø 12m×17m
2、BIC厌氧反应自动显示系统 / BIC anaerobic reactor automatically display system
为了更加直观、及时地显示BIC厌氧反应器运行时的各项参数，本方案特增加下列设备或仪器：
In order to intuitively and timely display the running parameters of BIC anaerobic reactor, hereby increase following equipment or instruments:
（1）进水流量计/ Inlet water flow meter
进水流量计采用电磁流量计，更加准确及时地显示当前进入BIC厌氧反应器的水量，更好地确定BIC的进水负荷。

The inlet water flow meter adopts electromagnetic meter in order to accurately and timely display the water capacity accessing into BIC anaerobic reactor and determine the BIC water inlet load.
型号：SDL智能电磁流量计数量：12台
参数：
管道连接方式：夹装式公称口径：150mm 温度范围：-25℃～180℃
流速范围：0.3～11m/s 额定压力：0.6～25 Mpa 法兰材质： 1Cr18Ni9
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外壳材质： 1Cr18Ni9 输出信号：4～20mA电流电源电压：18VDC～36VDC
显示方式：现场显示及远程信号显示功耗：≤15W
Spec.：SDL intelligent electromagnetic flow meter Qty：12 sets
Parameters：
Piping connecting：clip system nominal calibre：150mm temperature：-25℃～180℃
Flow rate scale：0.3～11m/s rated pressure：0.6～25 Mpa flange material：1Cr18Ni9
Shell material：1Cr18Ni9 output signal：4～20mA electric current
power voltage：18VDC～36VDC
Display mode：status display and distant signal display power consumption：≤15W
（2）温度变送器/ Temperature transmitter
BIC厌氧反应器在运行过程中温度的控制是非常重要的参数，要准确、及时地掌握进水的温度，必须设温度变送器。

The temperature control in running of BIC anaerobic reactor is the very important parameters. Locate the temperature transmitter to grasp the inlet water temperature accurately and timely.
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型号：RWB一体化温度变送器数量：12台
参数：
输出信号：4-20Ma 温漂：±0.025%/℃环境温度：-40-85℃
供电电压：24V DC ±10% 隔爆等级：dⅡ B T6 防护等级：IP67
保护管材质：1Cr18Ni9Ti
Mode：RWB Integrated Temperature Transmitter Qty：12 sets
Parameters：
Output signal：4-20Ma temperature drift：
±0.025%/℃ambient temperature：-40-85℃
Power supply voltage：24V DC ±10%
flameproof grade：dⅡ B T6 defend grade：IP67
Protecting tube material：1Cr18Ni9Ti
（3）电脑 / Computer
为了将以上各种参数汇集在一起，更方便直观的检测，需要配置一台电脑。

Configure a computer to bring together above parameters so as to detect conveniently and intuitively.
三、一沉池 / The first sedimentation tank
BIC出水中含有大量的悬浮物，经一沉池把大部分悬浮物沉淀出来后，能减轻后续构筑物的负荷。

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There are lots of suspended substances in the BIC outlet water. The first sedimentation tank can settle most of the suspended substance, then reduce the following structure load.
设计流量：Q = 20000m3/d 表面负荷：1.80 m3/m2h 规格：Ø14×4.5m 数量：3座
主要设备: 半桥刮泥机
型号：ZBGD-14 功率：0.37 KW 数量：3台
Design flow：Q = 20000m3/d Surface load：1.80 m3/m2h Spec.：Ø14×4.5m Qty：3 sets
Main equipment: half-bridge scraper
Spec.：ZBGD-14 Power：0.37 KW Qty：3 sets
四、集水井/ Water collecting pool
集水井是保证回流水泵能连续的供水。

The water collecting pool is to ensure the continuous water supply for reflux pump.
设计流量：Q =18000 m3/d 设计HRT：5min 有效容积：180 m3
配套水泵：
型号：IS200-150-250 流量：400 m3/h 扬程：20m
功率：37kw 数量：6台（3用3备）
Design flow：Q =18000 m3/d Design HRT：5min Effective capacity：180 m3
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Matched water pump：
Spec.：IS200-150-250 Flow：400
m3/h Lift：20m
Power：37kw Qty：6 sets（3 in work 3 for emergency）
五、接触氧化池 / Contact oxidation tank
在A/O好氧池前设接触氧化池目的是将大部分有机物在这里去除，保证A/O好氧池中硝化池（好氧池）污泥中硝化菌的含量。

因为硝化池内含碳有机基质的浓度太高，会使生长速率较高的非硝化菌过度繁殖，从而使硝化菌得不到优势，降低了硝化速率影响脱氮效果。

The reason to put contact oxidation pond before A/O aerobic pool is to remove most organic and ensure the nitrobacteria content in the sludge. If the concentration of carbon organic substrate in nitrification pond is high, it will lead to the over speed propagation of non-nitrified germ with high growth speed. So that the nitrobacteria will lost its advantage, reduce the nitrification rate and affect the result.
接触氧化法是生物膜法的一种，它由池体、填料、曝气系统组成，由于池内安装填料，增加了池内的比表面积，增大了微生物附着载体，经充氧的污水以一定的流速流经填料时，微生物以污水中的有机物作营养源，不断新陈代谢，消耗废水中的有机物，附着于填料上的生物膜不断脱落和更新，保持着接触氧化池的正常连续运行。

Contact oxidation is one of biofilm, which is composed by pool, fill, aeration system. The pool
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installs fill, so that the surface area increases, which enlarges the attached carrier for microbe. When the oxygenated wastewater flows through the filling with certain rate, the microbe metabolism constantly, consumes the organic matter. The biofilm on filling keep dropping off and updating to maintain the normal and continuous operation for contact oxidation pool.
设计流量：Q = 2200 m3/d 设计进水COD：1600mg/l 设计进水BOD5：480mg/l
BOD污泥负荷：0.10kgBOD/kgMLVSSd MLVSS：2500mg/l 有效容积：V = 4200 m3
主要设备：
①风机：型号： SSR200 风量：46.44 m3 /min 风压： 6.0m
功率： 75kw 数量：2台（2用1备）
②曝气头：旋混曝气器数量：840套
③填料：ZV组合数量：1680 m3
Design flow：Q = 2200 m3/d Design inlet water COD：1600mg/l
Design inlet water BOD5：480mg/l
BOD sludge load：0.10kgBOD/kgMLVSSd MLVSS：2500mg/l Effective capacity：V = 4200 m3
Main equipment：
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① Blower：Spec.：SSR200 Input air：46.44 m3 /min Air press：6.0m
Power：75kw Qty：2台（2用1备）
② Aerator：swirl-mixing aerator Qty：840 sets
③ Filling：ZV assemble Qty：1680 m3
六、A/O好氧池 / A/O anoxic pond
A/O活性污泥法通过硝化反硝化的过程将N降解，即废水中的氨氮在好氧状态下被转化为硝态氮，然后通过污泥的回流在缺氧条件下将硝态氮转化为氮气排入大气中，同时将废水中的有机物降解。

A/O active sludge process degrade N through nitration and denitrification process, that is, NH-H in wastewater is converted into nitrate, then through sludge reflux in anoxic conditions, transform the nitrate into nitrogen, discharging into the atmosphere. At the same time, degrade the organic matter in the wastewater.
1、污水系统 / Wastewater system
设计流量：Q = 2200 m3/d 设计进水COD：480mg/l 设计进水NH3-N：560mg/l
NH3-N污泥负荷：0.05NH3-Nkg/kgMLVSSd MLSS：3000mg/l
有效容积：V = 8200 m3缺氧部分容积：V = 2000 m3好氧部分容积：V = 6200 m3
内循环量：200%-400% 污泥回流：80%-100% 硝化需风量：20 m3/min
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Design flow：Q = 2200 m3/d Design inlet water COD：480mg/l
Design inlet water NH3-N：560mg/l
NH3-N sludge load：0.05NH3-Nkg/kgMLVSSd MLSS：3000mg/l
Effective capacity：V = 8200 m3Anoxia part capacity：V = 2000 m3
Aerobic part capacity：V = 6200 m3
Internal circulating volume：200%-400%
sludge reflux：80%-100%
Air consumption for nitrification：20 m3/min
①内循环泵 / Internal circulating pump
型号：150WLB-380-5.4-11 流量：380 m3/h 扬程：5.4m
功率：11kw 转速：1450r/min 数量：2台（1用1备）Spec.：150WLB-380-5.4-11 Flow：380 m3/h Lift：5.4m
Power：11kw Speed rate：1450r/min Qty：2 set（one in work the other for emergency）
②曝气器：悬摆式微孔曝气管数量：330套
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Aerator: pendulum type microporous aeration tube Qty: 330 sets
2、曝气系统 / Serration system
风机型号： SSR150 风量：20.87 m3 /min 风压： 6m
功率： 37 kw 数量：2台（2用1备）
Blower Spec.：SSR150 Input air：20.87 m3 /min Wind pressure：6m
Power：37 kw Qty：2台（2用1备）
七、二沉池 / Secondary sedimentation tank
因活性污泥池出水中含有大量的悬浮污泥，利用沉淀池将大部分污泥沉淀分离出来，上清液自流至絮凝沉淀池。

沉淀的污泥一部分回流到好氧池中保持池内的生物量，剩余污泥排到污泥中。

There is much suspended sludge in activated sludge outlet water. Use sedimentation tank to separate most of the sludge and the supernatant will flow to the coagulation gas floating system. Part of the sludge will reflow to the aerobic pond to remain the biomass and others will discharge to the sludge tank.
设计流量：Q = 2200 m3/d 表面负荷：0.8 m3/m2h 规格：Ø12×4.5m 数量：1座
配套水泵：型号：4PW 流量：100 m3/h 扬程：11m
功率：7.5kw 转速：960rpm 数量：2台（1用1备）
主要设备: 刮吸泥机型号：ZBGS-12 功率：0.37 KW 数量：1台
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Design flow：Q = 2200 m3/d Surface load：0.8 m3/m2h Spec：Ø12×4.5m Qty：1 set
Matched pump：Spec.：4PW Flow：100
m3/h Lift：11m
Power：7.5kw Speed rate：960rpm Qty：2 set（one in work the other for emergency）
Main equipment: mud sucker and scraper Spec.：ZBGS-12 Power：0.37 KW Qty：1 set
第二节污泥处理系统
Section Two Sludge treatment system
污泥处理系统主要包括污泥池、污泥浓缩池、脱水机及机房等。

污泥中有机物含量很高，如果直接排入水体会造成二次污染。

所以必须经过浓缩、脱水等一系列处理，把浓度低的污泥压滤成含水率75%-80%的泥饼后外运处理。

Sludge treatment system includes sludge pool, sludge tihckener, dewatering machine and engine room, etc. The sludge contents high organic matter, it will reduce the secondary pollution if directly drain to the water. Therefore, carry out a series of treatment such as thickening and dehydration to filter the lower density sludge into mud-cake with 70%-80% moisture, then transport out for further treatment.
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