CN103626538B - Trench type composting method for treating breeding sewage and solid wastes simultaneously - Google Patents
Trench type composting method for treating breeding sewage and solid wastes simultaneously Download PDFInfo
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- 238000009264 composting Methods 0.000 title claims abstract description 85
- 239000010865 sewage Substances 0.000 title claims abstract description 65
- 239000002910 solid waste Substances 0.000 title claims abstract description 35
- 238000000034 method Methods 0.000 title claims abstract description 25
- 238000009395 breeding Methods 0.000 title claims description 26
- 230000001488 breeding effect Effects 0.000 title claims description 26
- 238000009360 aquaculture Methods 0.000 claims abstract description 35
- 244000144974 aquaculture Species 0.000 claims abstract description 35
- 239000002361 compost Substances 0.000 claims abstract description 32
- 239000000428 dust Substances 0.000 claims abstract description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 15
- 239000007789 gas Substances 0.000 claims abstract description 12
- 238000005273 aeration Methods 0.000 claims abstract description 11
- 239000000463 material Substances 0.000 claims abstract description 11
- 238000004332 deodorization Methods 0.000 claims abstract description 7
- 239000002351 wastewater Substances 0.000 claims abstract description 6
- 239000002912 waste gas Substances 0.000 claims description 14
- IJGRMHOSHXDMSA-UHFFFAOYSA-N nitrogen Substances N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 10
- 230000008569 process Effects 0.000 claims description 10
- 229910052757 nitrogen Inorganic materials 0.000 claims description 6
- 235000001674 Agaricus brunnescens Nutrition 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 claims description 3
- 230000007306 turnover Effects 0.000 claims description 3
- 238000012545 processing Methods 0.000 claims description 2
- 240000007594 Oryza sativa Species 0.000 claims 1
- 235000007164 Oryza sativa Nutrition 0.000 claims 1
- 235000009566 rice Nutrition 0.000 claims 1
- 239000002699 waste material Substances 0.000 abstract description 9
- CKUAXEQHGKSLHN-UHFFFAOYSA-N [C].[N] Chemical compound [C].[N] CKUAXEQHGKSLHN-UHFFFAOYSA-N 0.000 abstract description 4
- 238000011161 development Methods 0.000 description 4
- 230000006872 improvement Effects 0.000 description 4
- 210000003608 fece Anatomy 0.000 description 3
- 244000144972 livestock Species 0.000 description 3
- 238000012856 packing Methods 0.000 description 3
- 244000144977 poultry Species 0.000 description 3
- 239000002002 slurry Substances 0.000 description 3
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
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- 239000010871 livestock manure Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229910052698 phosphorus Inorganic materials 0.000 description 2
- 239000011574 phosphorus Substances 0.000 description 2
- 230000003321 amplification Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000001877 deodorizing effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
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- 230000000694 effects Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
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- 231100000719 pollutant Toxicity 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/40—Bio-organic fraction processing; Production of fertilisers from the organic fraction of waste or refuse
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- Fertilizers (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
本发明公开了一种同时处理养殖污水和固体废物的槽式堆肥方法，用于养殖废物处理领域，包括以下步骤：养殖场的养殖污水暗管收集于密闭的污水池，固体废物收集于设在污水池附近的堆肥车间；用水泵将养殖污水引入堆肥系统；调整堆肥系统内固体废物、养殖污水和辅料的比例，使碳氮比为25～30:1，含水率为50%～60%，移进堆肥槽内进行好氧堆肥，同时，水泵工作并通过堆肥槽上方的淋管将污水池内的养殖废水泵至堆肥槽内；对堆肥槽内养殖污水和固体废物进行翻堆，同时通过设在堆肥槽槽底的曝气口向堆肥槽内曝气，由堆肥槽内产生的废气收集后通过引风机排出并进行除尘、除臭处理。本发明变单纯的污水处理为养殖废物全部资源化利用，大幅降低养殖污水处理压力。
The invention discloses a trough-type composting method for simultaneously treating aquaculture sewage and solid waste, which is used in the field of aquaculture waste treatment. The composting workshop near the sewage pool; the aquaculture sewage is introduced into the composting system with a water pump; the ratio of solid waste, aquaculture sewage and auxiliary materials in the composting system is adjusted so that the carbon-nitrogen ratio is 25-30:1, and the moisture content is 50%-60%. Move it into the compost tank for aerobic composting. At the same time, the water pump works and pumps the aquaculture wastewater in the sewage pool to the compost tank through the shower pipe above the compost tank; turns over the aquaculture sewage and solid waste in the compost tank, and at the same time through the device The aeration port at the bottom of the composting tank aerates into the composting tank, and the exhaust gas generated in the composting tank is collected and discharged through the induced draft fan for dust removal and deodorization treatment. The present invention changes simple sewage treatment into full resource utilization of aquaculture waste, greatly reducing the pressure of aquaculture sewage treatment.
Description
技术领域 technical field
本发明用于养殖废弃物处理领域，特别是涉及一种同时处理养殖污水和固体废物的槽式堆肥方法。 The invention is used in the field of aquaculture waste treatment, and in particular relates to a tank-type composting method for simultaneously treating aquaculture sewage and solid waste.
背景技术 Background technique
规模化养殖是畜牧业发展的必然，也是畜牧业现代化的主要标志，因此畜牧业规模化养殖趋势不可逆转。随着规模化养殖业的发展，其后果之一是养殖与种植环节的分离，大量养殖废物的产生及处理即成为养殖业可持续发展的重大问题。相关资料显示，目前我国每年畜禽粪便的产生量为25-30亿吨（鲜重），而且这一数字随着我国畜禽养殖业的进一步发展还将上升。目前我国畜禽粪便利用率不到50%，很大一部分没有经过处理就直接排放到环境中，不仅造成有机资源的极大浪费，还对周围水土环境造成污染，许多河流和湖泊水体污染中养殖业贡献率达到30%以上。 Large-scale breeding is the necessity of the development of animal husbandry and the main symbol of the modernization of animal husbandry, so the trend of large-scale breeding of animal husbandry is irreversible. With the development of large-scale aquaculture, one of the consequences is the separation of aquaculture and planting links, and the generation and treatment of a large amount of aquaculture waste has become a major issue for the sustainable development of aquaculture. Relevant data show that the current annual production of livestock and poultry manure in my country is 2.5-3 billion tons (fresh weight), and this figure will increase with the further development of my country's livestock and poultry breeding industry. At present, the utilization rate of livestock and poultry feces in my country is less than 50%, and a large part is directly discharged into the environment without treatment, which not only causes a great waste of organic resources, but also pollutes the surrounding water and soil environment. The industry contribution rate reached more than 30%.
养殖场的污水仍然是当今畜牧业造成环境污染的最突出问题。目前我国大部分养殖场采用的污水水处理工艺仍然是：固液分离－厌氧处理－好氧处理，技术已经较成熟，但由于运作成本问题，推广难度较大，实施效果往往不理想。沼气工程是解决养殖污水和废弃物污染的重要手段之一，技术也比较成熟，但也面临一些问题，对于大、中型的养殖场，污水排放量较大，修建大型沼气工程，一次性工程投资巨大。如果按照市场经济的机制运行，在经济上均缺乏获益的能力。而且集约化养殖场一般远离居民点，沼气利用遇到困难。处理后的沼液、沼渣在管理、处理和利用上还需要投资，大大增加工程的运转费用。如果养殖场周边没有相适应的大面积的种植区消耗沼液，那么沼气工程在一定程度上相当于“污染源放大”-----大量的沼液无法安全处置。 Sewage from farms is still the most prominent problem of environmental pollution caused by animal husbandry today. At present, the sewage water treatment process adopted by most farms in my country is still: solid-liquid separation-anaerobic treatment-aerobic treatment. The technology is relatively mature, but due to the problem of operating costs, it is difficult to promote, and the implementation effect is often unsatisfactory. Biogas project is one of the important means to solve the pollution of breeding sewage and waste. The technology is relatively mature, but it also faces some problems. For large and medium-sized farms, the amount of sewage discharge is relatively large, and the construction of large-scale biogas projects requires a one-time project investment. huge. If it operates according to the mechanism of market economy, it lacks the ability to benefit economically. Moreover, intensive farms are generally far away from residential areas, so it is difficult to utilize biogas. The treated biogas slurry and biogas residue still require investment in management, treatment and utilization, which greatly increases the operating cost of the project. If there is no suitable large-scale planting area around the farm to consume biogas slurry, then the biogas project is equivalent to "pollution source amplification" to a certain extent----a large amount of biogas slurry cannot be disposed of safely.
目前养殖污水主要污染物仍然是有机物和氮磷物质，这种高浓度的有机污水处理的主要技术瓶颈是污水COD的浓度往往超出常规生物处理能承受的范围，而且污水高浓度SS、氮和磷等也使常规生物处理难于应对。 At present, the main pollutants of aquaculture sewage are still organic matter and nitrogen and phosphorus substances. The main technical bottleneck of this high-concentration organic sewage treatment is that the concentration of sewage COD often exceeds the range that conventional biological treatment can bear, and the sewage has high concentrations of SS, nitrogen and phosphorus. etc. also make conventional biological treatment difficult to deal with.
发明内容 Contents of the invention
为解决上述问题，本发明提供一种可同时处理养殖污水和固体废物实现养殖废物全部资源化利用的槽式堆肥方法。 In order to solve the above problems, the present invention provides a trough composting method that can simultaneously treat aquaculture sewage and solid waste to realize resource utilization of all aquaculture waste.
本发明解决其技术问题所采用的技术方案是：一种同时处理养殖污水和固体废物的槽式堆肥方法，包括以下步骤： The technical scheme adopted by the present invention to solve the technical problem is: a kind of trough type composting method for simultaneously processing breeding sewage and solid waste, comprising the following steps:
A. 养殖场的养殖污水暗管收集于密闭的污水池，固体废物收集于设在污水池附近的堆肥车间； A. The hidden pipes of the breeding sewage in the farm are collected in the closed sewage pond, and the solid waste is collected in the composting workshop near the sewage pond;
B. 用水泵将养殖污水引入堆肥系统； B. Use the water pump to introduce the aquaculture sewage into the composting system;
C. 调整堆肥系统内固体废物、养殖污水和辅料的比例，使碳氮比为25～30:1，含水率为50%～60%，移进堆肥槽内进行好氧堆肥，同时，水泵工作并通过堆肥槽上方的淋管将污水池内的养殖废水泵至堆肥槽内； C. Adjust the ratio of solid waste, breeding sewage and auxiliary materials in the composting system so that the carbon-nitrogen ratio is 25-30:1, and the moisture content is 50%-60%. Move it into the compost tank for aerobic composting, and at the same time, the water pump works And through the shower above the composting tank, the aquaculture wastewater in the sewage tank is pumped into the composting tank;
D. 对堆肥槽内的养殖污水和固体废物进行翻堆，同时通过设在堆肥槽槽底的曝气口向堆肥槽内曝气，由堆肥槽内产生的废气收集后通过引风机排出并进行除尘、除臭处理。 D. Turn over the breeding sewage and solid waste in the compost tank, and at the same time aerate the compost tank through the aeration port at the bottom of the compost tank. The waste gas generated in the compost tank is collected and discharged through the induced draft fan and carried out Dust removal and deodorization treatment.
进一步作为本发明技术方案的改进，步骤A中清理固体废物采用干清粪工艺。 As a further improvement of the technical solution of the present invention, in step A, the solid waste is cleaned up using a dry excrement cleaning process.
进一步作为本发明技术方案的改进，步骤C中堆肥辅料包括蘑菇渣和谷糠。 As a further improvement of the technical solution of the present invention, the composting auxiliary materials in step C include mushroom dregs and grain bran.
进一步作为本发明技术方案的改进，步骤D中废气的收集通过罩在堆肥槽上方的集气罩完成，集气罩的下沿设有与堆肥槽连接的塑料卷帘，集气罩上设有与引风机接通的排气管。 As a further improvement of the technical solution of the present invention, the collection of waste gas in step D is completed through a gas collection hood above the compost tank, the lower edge of the gas collection hood is provided with a plastic roller shutter connected to the compost tank, and the gas collection hood is provided with Exhaust pipe connected to the induced draft fan.
进一步作为本发明技术方案的改进，步骤D中的废气在引风机的作用下沿排气管依次经过除尘器、滴滤塔和生物滤池，如此完成除尘、除臭处理。 As a further improvement of the technical solution of the present invention, the exhaust gas in step D passes through the dust collector, trickling filter tower and biological filter sequentially along the exhaust pipe under the action of the induced draft fan, thus completing the dust removal and deodorization treatment.
本发明的有益效果：本同时处理养殖污水和固体废物的槽式堆肥方法中，将养殖污水和固体废物分别收集后导入堆肥槽内，通过堆肥辅料调整碳氮比和含水率，然后配合堆肥槽槽底的曝气口，同时对养殖污水和固体废物进行好养堆肥化处理并得到堆肥，同时将产生的废气进行除尘、除臭处理，避免污染。本发明变单纯的污水处理为养殖废物全部资源化利用，实现养殖污水零排放，可大幅度降低养殖污水处理压力。 Beneficial effects of the present invention: In the trough composting method for simultaneously treating aquaculture sewage and solid waste, the aquaculture sewage and solid waste are collected separately and introduced into the composting tank, and the carbon-nitrogen ratio and water content are adjusted through composting auxiliary materials, and then combined with the composting tank The aeration port at the bottom of the tank is used to compost the breeding sewage and solid waste at the same time and obtain compost. At the same time, the waste gas generated is dedusted and deodorized to avoid pollution. The invention transforms simple sewage treatment into full resource utilization of breeding waste, realizes zero discharge of breeding sewage, and can greatly reduce the pressure of breeding sewage treatment.
附图说明 Description of drawings
下面结合附图对本发明作进一步说明： The present invention will be further described below in conjunction with accompanying drawing:
图1是本发明的流程图； Fig. 1 is a flow chart of the present invention;
图2是实施本发明的堆肥系统示意图。 Fig. 2 is a schematic diagram of a composting system implementing the present invention.
具体实施方式 Detailed ways
参照图1、图2，本发明提供了一种同时处理养殖污水和固体废物的槽式堆肥方法，包括以下步骤： With reference to Fig. 1, Fig. 2, the present invention provides a kind of trough type composting method that simultaneously processes breeding sewage and solid waste, comprises the following steps:
A. 养殖场的养殖污水暗管收集于密闭的污水池31，固体废物通过干清粪工艺收集于设在污水池31附近的堆肥车间1； A. The hidden pipes of breeding sewage in the farm are collected in the closed sewage pond 31, and the solid waste is collected in the composting workshop 1 near the sewage pond 31 through the dry cleaning process;
B. 用水泵32将养殖污水引入堆肥系统； B. Use the water pump 32 to introduce the aquaculture sewage into the composting system;
C. 调整堆肥系统内固体废物、养殖污水和辅料的比例，使碳氮比为25～30:1，含水率为50%～60%，移进堆肥槽2内进行好氧堆肥，同时，水泵32工作并通过堆肥槽2上方的淋管3将污水池31内的养殖废水泵至堆肥槽2内； C. Adjust the ratio of solid waste, breeding sewage and auxiliary materials in the composting system so that the carbon-to-nitrogen ratio is 25-30:1, and the water content is 50%-60%. Move it into the composting tank 2 for aerobic composting. At the same time, the water pump 32 works and pumps the breeding waste water in the sewage pool 31 to the composting tank 2 by the shower pipe 3 above the composting tank 2;
D. 对所述堆肥槽2内的养殖污水和固体废物进行翻堆，同时通过设在堆肥槽2槽底的曝气口21向堆肥槽2内曝气，由堆肥槽2内产生的废气收集后通过引风机8排出并进行除尘、除臭处理。如此来对养殖废水和固体废物同时进行好氧堆肥化处理并得到堆肥；堆肥化处理过程中，由堆肥槽2内产生的废气通过罩在堆肥槽2上方的集气罩41收集，集气罩41的下沿设有与堆肥槽2连接的塑料卷帘42，集气罩41上设有与引风机8接通的排气管4，收集后的废气在引风机8的作用下沿排气管4依次经过除尘器5、滴滤塔6和生物滤池7，如此完成除尘、除臭处理。 D. Turn over the aquaculture sewage and solid waste in the compost tank 2, and aerate the compost tank 2 through the aeration port 21 at the bottom of the compost tank 2, and collect the waste gas generated in the compost tank 2 Finally, it is discharged through the induced draft fan 8 and subjected to dust removal and deodorization treatment. In this way, aerobic composting treatment and composting are carried out on the breeding wastewater and solid waste at the same time; during the composting process, the waste gas generated in the composting tank 2 is collected by the gas collecting hood 41 covering the top of the composting tank 2, and the gas collecting hood The lower edge of 41 is provided with the plastic roller shutter 42 that is connected with compost tank 2, and the air collecting hood 41 is provided with the exhaust pipe 4 that is connected with induced draft fan 8, and the waste gas after collecting is exhausted along the direction under the action of induced draft fan 8. The pipe 4 passes through the dust collector 5, the trickling filter tower 6 and the biofilter 7 in sequence, so as to complete the dust removal and deodorization treatment.
本同时处理养殖污水和固体废物的槽式堆肥方法中，将养殖污水和固体废物分别收集后导入堆肥槽2内，通过堆肥辅料调整碳氮比和含水率，然后配合堆肥槽2槽底的曝气口21，同时对养殖污水和固体废物进行好养堆肥化处理并得到堆肥，同时将产生的废气进行除尘、除臭处理，避免污染。本发明变单纯的污水处理为养殖废物全部资源化利用，实现养殖污水零排放，可大幅度降低养殖污水处理压力。 In this trough composting method for simultaneously treating aquaculture sewage and solid waste, the aquaculture sewage and solid waste are collected separately and introduced into the composting tank 2, and the carbon-nitrogen ratio and moisture content are adjusted through composting auxiliary materials, and then combined with the exposure at the bottom of the composting tank 2 The air port 21 is used to compost the aquaculture sewage and solid waste and obtain compost at the same time, and to remove dust and deodorize the generated waste gas to avoid pollution. The invention transforms simple sewage treatment into full resource utilization of breeding waste, realizes zero discharge of breeding sewage, and can greatly reduce the pressure of breeding sewage treatment.
作为本发明优选的实施方式，步骤C中堆肥辅料包括蘑菇渣和谷糠。 As a preferred embodiment of the present invention, the composting auxiliary materials in step C include mushroom dregs and grain bran.
参照图2，实施本发明的堆肥系统包括堆肥车间1、若干设在堆肥车间1内的堆肥槽2以及将养殖污水引至各堆肥槽2内的淋管3，各堆肥槽2的槽底均设有曝气口21，穿过堆肥车间1的墙壁设置将废气导出的排气管4，堆肥车间1的外侧设置污水池31和将污水池31内的养殖污水泵至淋管3的水泵32。堆肥槽2的下方设有与各曝气口21均接通的曝气管22，曝气管22的管口处连接鼓风机23。鼓风机23建在堆肥槽2的侧边，并通过曝气管22向堆肥槽2内曝气，对固体废物进行好养堆肥化处理。堆肥车间1内设置罩住各堆肥槽2的集气罩41，排气管4的进气口穿过集气罩41探至堆肥槽2的上方，集气罩41的下沿设有与堆肥槽2连接的塑料卷帘42。与排气管4的出气口接通设置旋风除尘器5。还包括滴滤塔6、生物滤池7以及鼓动由旋风除尘器5排出的气体依次穿过滴滤塔6、生物滤池7的引风机8，引风机8设置在旋风除尘器5和滴滤塔6间。经过旋风除尘器5的废气去除粉尘后由滴滤塔6和生物滤池7进行除臭，在滴滤塔6底部添加有复合除臭液，将其通过滴滤塔6的填料，滴滤塔6设有三级填料，其中两级填料上安装喷淋装置在滴滤塔6可去除大部分臭气，剩余废气进入生物滤池7进一步降解。 With reference to Fig. 2, implement composting system of the present invention and comprise composting workshop 1, some composting tanks 2 that are located in composting workshop 1 and shower pipe 3 that aquaculture sewage is led in each composting tank 2, the tank bottom of each composting tank 2 An aeration port 21 is provided, and an exhaust pipe 4 is set through the wall of the composting workshop 1 to lead out the waste gas. A sewage pool 31 and a water pump 32 for pumping the breeding sewage in the sewage pool 31 to the shower pipe 3 are provided on the outside of the composting workshop 1 . The bottom of the composting tank 2 is provided with an aeration pipe 22 connected with each aeration port 21, and the mouth of the aeration pipe 22 is connected with a blower 23. The blower 23 is built on the side of the composting tank 2, and aerates the air in the composting tank 2 through the aeration pipe 22, so that the solid wastes are treated with good nutrition and composting. The composting workshop 1 is provided with an air collecting hood 41 covering each composting tank 2, and the air inlet of the exhaust pipe 4 passes through the collecting hood 41 to the top of the composting tank 2, and the lower edge of the collecting hood 41 is provided with a Groove 2 is attached to the plastic roller blind 42 . Connect with the air outlet of the exhaust pipe 4 and set the cyclone dust collector 5 . It also includes a trickling filter tower 6, a biological filter tank 7 and an induced draft fan 8 that agitates the gas discharged by the cyclone dust collector 5 to pass through the trickling filter tower 6 and the biological filter tank 7 successively. There are 6 towers. After the waste gas of the cyclone dust collector 5 removes the dust, it is deodorized by the trickling filter tower 6 and the biological filter tank 7. At the bottom of the trickling filter tower 6, a compound deodorizing liquid is added, and it passes through the packing of the trickling filter tower 6, and the trickling filter tower 6 is provided with three-stage packing, wherein spraying device is installed on the two-stage packing and can remove most of the odor in trickling filter tower 6, and the remaining waste gas enters biofilter 7 for further degradation.
工作时，固体废物通过干清粪工艺放入长而窄的堆肥槽2内，堆肥槽2上方架设轨道，翻堆机在轨道上行走同时对固体废物进行翻堆，将养殖污水和固体废物放置到堆肥槽2内，配合堆肥槽2槽底的曝气口21，对其进行堆肥化处理，将产生的废气通过排气管4导出。由于高温堆肥普遍存在氮素损失和臭气污染问题，本发明在槽式堆肥处理养殖固体废物的同时，在高温堆肥过程通过淋管3逐渐添加高浓度的养殖污水，减少了堆肥过程氮素损失和臭气排放，同时提高堆肥养分含量。 During work, the solid waste is put into the long and narrow compost tank 2 through the dry manure cleaning process, and a track is set up above the compost tank 2. The compost turner walks on the track and turns the solid waste at the same time. In the composting tank 2, cooperate with the aeration port 21 at the bottom of the composting tank 2 to carry out composting treatment, and the waste gas generated is exported through the exhaust pipe 4. Because high-temperature composting generally has nitrogen loss and odor pollution problems, the present invention gradually adds high-concentration breeding sewage through the shower pipe 3 during the high-temperature composting process while treating the cultured solid waste in the tank composting process, reducing the nitrogen loss during the composting process And odor emissions, while increasing the nutrient content of compost.
采用集气罩41与塑料卷帘42串联将堆肥槽2相对封闭，在确保翻堆设备正常运行同时克服了现有设计中开放式堆肥空间水分蒸发少、臭气难以收集的问题。引风机8是用于集气罩41气体收集的风机，同时为向滴滤塔6送入气体的风机。同时，利用集气罩41和塑料卷帘42串联将堆肥槽2相对密闭，好氧堆肥产生的高温使热空气不断上升，水分蒸发量大，配合适当的正压曝气和负压引风相结合的方法，利用堆肥产生的高温可去除堆料中大量的水分和臭气，使堆肥物料快速干燥。当物料干燥一定程度后，即可重复将高浓度的养殖污水通过淋管加入堆肥槽2的堆料中，因此该堆肥系统可同时处理大量的高度浓度有机废水。 The compost tank 2 is relatively closed by using the air collecting hood 41 and the plastic roller shutter 42 in series to ensure the normal operation of the composting equipment and overcome the problems of less water evaporation and difficult odor collection in the open composting space in the existing design. The induced draft fan 8 is a fan used for gas collection in the gas collecting hood 41 and is also a fan for sending gas into the trickling filter tower 6 . At the same time, the compost tank 2 is relatively airtight by using the air collecting hood 41 and the plastic roller shutter 42 in series, the high temperature generated by the aerobic composting makes the hot air rise continuously, and the evaporation of water is large. Combining the method, the high temperature generated by the compost can remove a large amount of moisture and odor in the compost, so that the compost material can be dried quickly. When the material is dry to a certain extent, high-concentration aquaculture sewage can be repeatedly added to the composting tank 2 through the shower pipe, so the composting system can simultaneously treat a large amount of high-concentration organic wastewater.
当然，本发明创造并不局限于上述实施方式，熟悉本领域的技术人员在不违背本发明精神的前提下还可作出等同变形或替换，这些等同的变型或替换均包含在本申请权利要求所限定的范围内。 Of course, the present invention is not limited to the above-mentioned embodiments. Those skilled in the art can also make equivalent modifications or replacements without violating the spirit of the present invention. These equivalent modifications or replacements are all included in the claims of this application. within a limited range.
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