CN103818989A - Method and device for delayed stirring and coagulating granulation treatment of waste water in high-suspension system - Google Patents
Method and device for delayed stirring and coagulating granulation treatment of waste water in high-suspension system Download PDFInfo
- Publication number
- CN103818989A CN103818989A CN201410085481.0A CN201410085481A CN103818989A CN 103818989 A CN103818989 A CN 103818989A CN 201410085481 A CN201410085481 A CN 201410085481A CN 103818989 A CN103818989 A CN 103818989A
- Authority
- CN
- China
- Prior art keywords
- granulation
- waste water
- suspended
- coagulation
- stirring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000003756 stirring Methods 0.000 title claims abstract description 60
- 239000002351 wastewater Substances 0.000 title claims abstract description 48
- 230000003179 granulation Effects 0.000 title claims abstract description 45
- 238000005469 granulation Methods 0.000 title claims abstract description 45
- 238000000034 method Methods 0.000 title claims abstract description 28
- 239000000725 suspension Substances 0.000 title abstract description 25
- 230000003111 delayed effect Effects 0.000 title abstract description 13
- 230000001112 coagulating effect Effects 0.000 title 1
- 238000005345 coagulation Methods 0.000 claims abstract description 46
- 230000015271 coagulation Effects 0.000 claims abstract description 46
- 239000002245 particle Substances 0.000 claims abstract description 32
- 239000010802 sludge Substances 0.000 claims abstract description 26
- 238000005189 flocculation Methods 0.000 claims abstract description 16
- 230000016615 flocculation Effects 0.000 claims abstract description 14
- 239000012535 impurity Substances 0.000 claims abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 10
- 238000010008 shearing Methods 0.000 claims abstract description 6
- 239000000701 coagulant Substances 0.000 claims abstract description 5
- 230000035484 reaction time Effects 0.000 claims description 10
- 238000000280 densification Methods 0.000 claims description 7
- 229920002401 polyacrylamide Polymers 0.000 claims description 5
- 239000008394 flocculating agent Substances 0.000 claims description 4
- 239000008187 granular material Substances 0.000 claims description 4
- 230000000694 effects Effects 0.000 claims description 3
- 238000013467 fragmentation Methods 0.000 claims 3
- 238000006062 fragmentation reaction Methods 0.000 claims 3
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims 1
- 229910052782 aluminium Inorganic materials 0.000 claims 1
- 239000004411 aluminium Substances 0.000 claims 1
- 239000003795 chemical substances by application Substances 0.000 claims 1
- 239000011780 sodium chloride Substances 0.000 claims 1
- 238000000265 homogenisation Methods 0.000 abstract description 13
- 238000005056 compaction Methods 0.000 abstract description 2
- 238000009826 distribution Methods 0.000 abstract description 2
- 230000002776 aggregation Effects 0.000 description 6
- 238000005054 agglomeration Methods 0.000 description 5
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical class [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 description 4
- 125000002091 cationic group Chemical group 0.000 description 4
- 239000000084 colloidal system Substances 0.000 description 3
- 239000000839 emulsion Substances 0.000 description 3
- 239000010419 fine particle Substances 0.000 description 2
- 239000010954 inorganic particle Substances 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000004220 aggregation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
Landscapes
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
一种高悬浊体系废水延时搅拌混凝造粒处理方法，对高悬浊体系废水进行高剪切力场破碎，完成悬浊体系杂质颗粒的均质化；将经均质化处理的废水进行延时搅拌混凝造粒，首先，投加絮凝剂使废水中的悬浊质脱稳聚集以实现快速絮凝；其次，投加助凝剂并在适当的水力剪切作用下凝聚造粒；最后，优化水力操作条件使凝聚造粒所形成的颗粒污泥密实化，密实化反应形成的颗粒污泥极易从水中分离，进而实现高悬浊体系废水的高效、快速处理，本发明还提供了相应的处理装置，本发明通过高剪切力场破碎改变悬浊体系杂质颗粒粒径分布，使之颗粒均质化，并在特定的混凝操作条件下进行废水的混凝造粒，同时完成污泥颗粒的密实化，且所形成的污泥颗粒沉速快、易于分离。A treatment method for time-delayed stirring coagulation granulation of wastewater in a high-suspension system, in which the wastewater of a high-suspension system is crushed in a high-shear force field to complete the homogenization of impurity particles in the suspension system; the homogenized wastewater To carry out delayed stirring coagulation granulation, firstly, add flocculant to destabilize and aggregate the suspended matter in wastewater to achieve rapid flocculation; secondly, add coagulant aid and coagulate granulation under appropriate hydraulic shearing; Finally, optimize the hydraulic operating conditions to make the granular sludge formed by coagulation and granulation compact, and the granular sludge formed by the compacting reaction is very easy to separate from the water, thereby realizing efficient and rapid treatment of wastewater in high-suspension systems. The present invention also provides The corresponding treatment device is provided. The present invention changes the particle size distribution of the impurity particles in the suspension system through high shear force field crushing, so that the particles are homogenized, and carries out coagulation and granulation of wastewater under specific coagulation operating conditions, and at the same time The compaction of sludge particles is completed, and the formed sludge particles have a fast settling speed and are easy to separate.
Description
技术领域technical field
本发明属于污水处理技术领域，特别涉及一种高悬浊体系废水延时搅拌混凝造粒处理方法与装置。The invention belongs to the technical field of sewage treatment, and in particular relates to a treatment method and device for delayed stirring coagulation granulation of waste water in a high-suspension system.
背景技术Background technique
高悬浊体系废水是指水中水中还有大量粒径差异大的无机颗粒、乳化液以及有机胶体的废水，对于该种废水采用混凝处理工艺是最佳选择，该工艺可以去除水中悬浮物、胶体颗粒及大分子有机物。该过程一般分为两个步骤：絮凝和凝聚，絮凝是指通过向水中投加絮凝剂与水中的细小颗粒、胶体以及溶解性大分子物质发生作用，改变其表面电荷性质促使该类物质相互聚集，形成细小微粒；凝聚是指在适当的水力剪切作用下，通过高分子物质吸附架桥，使絮凝中形成的微粒相互黏结形成更大尺度不溶颗粒的过程。High suspension system wastewater refers to the wastewater in which there are a large number of inorganic particles, emulsions and organic colloids with large particle sizes in the water. For this kind of wastewater, the coagulation treatment process is the best choice. This process can remove suspended solids, Colloidal particles and macromolecular organic matter. The process is generally divided into two steps: flocculation and coagulation. Flocculation refers to adding flocculants to the water to interact with fine particles, colloids and dissolved macromolecular substances in the water, changing their surface charge properties to promote the mutual aggregation of such substances. , forming fine particles; agglomeration refers to the process of making the particles formed in flocculation bond with each other to form larger-scale insoluble particles under the action of appropriate hydraulic shear, through the adsorption and bridging of polymer substances.
然而，对于高悬浊体系废水，由于其中含有大量粒径差异极大的无机颗粒、乳化液及有机胶体，直接采用常规混凝工艺处理时，会在絮凝阶段形成尺寸各异、孔隙率高的絮体，进而在凝聚阶段形成结构松散、含水率极高污泥，且污泥絮体中含有轻质乳化液，直接导致污泥的沉降性能极差。通常情况下静沉1h后，污泥体积仍可高达60～80%，导致混凝处理失去其应有的价值。因此，开发出适合高悬浊质废水的混凝去除技术对于提高该类废水处理率、降低废水处理成本、削减污染物向周边水体排放，保证环境质量均具有重要意义。However, for high-suspension system wastewater, because it contains a large number of inorganic particles, emulsions and organic colloids with greatly different particle sizes, when it is directly treated by conventional coagulation processes, it will form particles with different sizes and high porosity in the flocculation stage. flocs, and then form loose structure and extremely high water content sludge in the coagulation stage, and the sludge flocs contain light emulsion, which directly leads to extremely poor sedimentation performance of the sludge. Usually, after 1 hour of static settling, the sludge volume can still be as high as 60-80%, causing the coagulation treatment to lose its due value. Therefore, the development of a coagulation removal technology suitable for highly suspended wastewater is of great significance for improving the treatment rate of this type of wastewater, reducing the cost of wastewater treatment, reducing the discharge of pollutants to surrounding water bodies, and ensuring environmental quality.
发明内容Contents of the invention
为了克服上述现有技术的缺点，本发明的目的在于提供一种高悬浊体系废水延时搅拌混凝造粒处理方法，通过高剪切力场破碎改变悬浊体系杂质颗粒粒径分布，使之颗粒均质化，并在特定的混凝操作条件下进行废水的混凝造粒，同时完成污泥颗粒的密实化，且所形成的污泥颗粒沉速快、易于分离。In order to overcome the above-mentioned shortcoming of the prior art, the object of the present invention is to provide a kind of high-suspension system waste water delayed stirring coagulation granulation treatment method, change the particle size distribution of the impurity particles in the suspension system by crushing in the high-shear force field, so that The particles are homogenized, and coagulation and granulation of wastewater are carried out under specific coagulation operating conditions, and the compaction of sludge particles is completed at the same time, and the formed sludge particles have a fast settling speed and are easy to separate.
为了实现上述目的，本发明采用的技术方案是：In order to achieve the above object, the technical scheme adopted in the present invention is:
一种高悬浊体系废水延时搅拌混凝造粒处理方法，包括如下步骤：A treatment method for delayed stirring coagulation granulation of waste water in a high suspension system, comprising the following steps:
对高悬浊体系废水进行高剪切力场破碎，完成悬浊体系杂质颗粒的均质化；High-shear force field crushing of wastewater in high-suspension system to complete the homogenization of impurity particles in the suspension system;
将经均质化处理的废水进行延时搅拌混凝造粒，首先，投加絮凝剂使废水中的悬浊质脱稳聚集以实现快速絮凝；其次，投加助凝剂在适当的水力剪切作用下凝聚造粒；最后，优化水力操作条件使凝聚造粒所形成的颗粒污泥密实化。The homogenized wastewater is subjected to delayed stirring coagulation and granulation. Firstly, flocculants are added to destabilize the suspended solids in the wastewater to achieve rapid flocculation; Coagulation and granulation under cutting action; finally, optimize the hydraulic operating conditions to make the granular sludge formed by coagulation and granulation compact.
所述高剪切力场破碎的破碎强度为300s-1＜G＜350s-1，持续时间为15～20min。The crushing strength of the high shear force field crushing is 300s -1 <G<350s -1 , and the duration is 15-20 minutes.
所述快速絮凝过程中搅拌强度维持在130s-1＜G＜150s-1，采用铝盐类絮凝剂，投加量控制在80～200mg/L，反应时间1～2min。During the rapid flocculation process, the stirring intensity is maintained at 130s -1 <G<150s -1 , the aluminum salt flocculant is used, the dosage is controlled at 80-200 mg/L, and the reaction time is 1-2 minutes.
所述凝聚造粒过程中搅拌强度维持在15s-1＜G＜20s-1，采用阳离子型聚丙烯酰胺，投加量控制在5～15mg/L，反应时间8～10min。During the agglomeration and granulation process, the stirring intensity is maintained at 15s -1 <G<20s -1 , cationic polyacrylamide is used, the dosage is controlled at 5-15 mg/L, and the reaction time is 8-10 minutes.
所述密实化过程中搅拌强度维持在25s-1＜G＜30s-1，持续时间15～20min。During the densification process, the stirring intensity is maintained at 25s -1 <G<30s -1 , and the duration is 15-20 minutes.
所述密实化形成的颗粒污泥粒径为200～300μm，含水率小于85%。The particle size of the granular sludge formed by the densification is 200-300 μm, and the water content is less than 85%.
本发明还提供了一种高悬浊体系废水延时搅拌混凝造粒处理装置，包括：The present invention also provides a delayed stirring coagulation granulation treatment device for high-suspension system wastewater, including:
均质化处理区，利用水力剪切作用对高悬浊体系废水破碎，完成悬浊体系杂质颗粒的均质化；In the homogenization treatment area, hydraulic shearing is used to break up the wastewater in the high-suspension system to complete the homogenization of the impurity particles in the suspension system;
快速絮凝区，其中设置有搅拌装置并连接有絮凝剂投加装置，将均质化处理后的废水中的悬浊质脱稳聚集；The rapid flocculation zone, which is equipped with a stirring device and connected with a flocculant dosing device, destabilizes and gathers the suspended matter in the homogenized wastewater;
凝聚造粒区，其中设置有搅拌装置并连接有助凝剂投加装置，将脱稳聚集的悬浊质凝聚造粒；Agglomeration and granulation area, which is equipped with a stirring device and connected with a coagulant aid dosing device, to agglomerate and granulate the destabilized and aggregated suspended matter;
延时搅拌区，其中设置有搅拌装置，将凝聚造粒所形成的颗粒污泥密实化。The delayed stirring zone is equipped with a stirring device to compact the granular sludge formed by coagulation and granulation.
所述均质化处理区中的剪切力来自设置于其中的螺旋搅拌装置。The shearing force in the homogenization treatment zone comes from the helical stirring device arranged therein.
与现有技术相比，本发明的有益效果是：Compared with prior art, the beneficial effect of the present invention is:
1、本方法操作简便，容易实现规模化应用。1. The method is simple to operate and easy to realize large-scale application.
2、本方法适用性强，采用不同生物处理工艺的污水厂均可应用。2. The method has strong applicability and can be applied to sewage plants using different biological treatment processes.
3、本方法处理效率高，污泥水经处理后可以直接排放。3. The treatment efficiency of this method is high, and the sludge water can be discharged directly after treatment.
4、本方法处理成本低。4. The processing cost of this method is low.
具体实施方式Detailed ways
下面结合实施例详细说明本发明的实施方式。The implementation of the present invention will be described in detail below in conjunction with the examples.
本发明一种高悬浊体系废水延时搅拌混凝造粒处理装置，包括：均质化处理区，利用内设的螺旋搅拌装置产生的水力剪切作用对高悬浊体系废水破碎，完成悬浊体系杂质颗粒的均质化；快速絮凝区，其中设置有搅拌装置并连接有絮凝剂投加装置，将均质化处理后的废水中的悬浊质脱稳聚集；凝聚造粒区，其中设置有搅拌装置并连接有助凝剂投加装置，将脱稳聚集的悬浊质凝聚造粒；延时搅拌区，其中设置有搅拌装置，将凝聚造粒所形成的颗粒污泥密实化。The invention relates to a time-delayed stirring coagulation granulation treatment device for waste water in a high suspension system, comprising: a homogenization treatment area, which uses the hydraulic shearing effect generated by the built-in spiral stirring device to crush the waste water in a high suspension system to complete the suspension Homogenization of impurity particles in the turbidity system; rapid flocculation zone, which is equipped with a stirring device and connected with a flocculant dosing device, to destabilize and gather the suspended matter in the homogenized wastewater; coagulation and granulation zone, in which A stirring device is provided and connected with a coagulant aid dosing device to coagulate and granulate the destabilized and aggregated suspended matter; in the delayed stirring zone, a stirring device is installed in it to compact the granular sludge formed by coagulation and granulation.
根据本发明的高悬浊体系废水延时搅拌混凝造粒方法：According to the high-suspension system wastewater delayed stirring coagulation granulation method of the present invention:
实施例一Embodiment one
首先，控制高剪切场力破碎处理均质化反应中的破碎强度为300s-1，(搅拌装置转速约800r/min)，持续时间10min，对高悬浊体系废水进行高剪切力场破碎以完成悬浊体系杂质颗粒的均质化。Firstly, control the crushing strength of the high shear field force crushing treatment in the homogenization reaction to 300s -1 (the rotation speed of the stirring device is about 800r/min), and the duration is 10min, and carry out high shear force field crushing on the high suspension system wastewater To complete the homogenization of impurity particles in the suspension system.
随后，经均质化处理的废水进入混凝造粒区；混凝造粒共有三个步骤：Subsequently, the homogenized wastewater enters the coagulation and granulation area; there are three steps in coagulation and granulation:
快速絮凝区，控制搅拌装置的搅拌强度维持在130s-1，采用铝盐类絮凝剂，投加量控制在200mg/L，反应时间1min，使废水中的悬浊质脱稳聚集；In the fast flocculation area, the stirring intensity of the stirring device is controlled to maintain at 130s -1 , the aluminum salt flocculant is used, the dosage is controlled at 200mg/L, and the reaction time is 1min, so that the suspended matter in the wastewater can be destabilized and aggregated;
凝聚造粒区，控制搅拌装置的搅拌强度维持在15s-1，采用阳离子型聚丙烯酰胺，投加量控制在15mg/L，反应时间8min，进行凝聚造粒；In the coagulation and granulation area, the stirring intensity of the stirring device is controlled to be maintained at 15s -1 , cationic polyacrylamide is used, the dosage is controlled at 15mg/L, and the reaction time is 8min, for coagulation and granulation;
延时搅拌区，控制搅拌装置的搅拌强度维持在25s-1，持续时间20min，使凝聚造粒所形成的颗粒污泥密实化。In the delayed stirring zone, the stirring intensity of the stirring device is controlled to be maintained at 25s -1 for 20 minutes, so that the granular sludge formed by coagulation and granulation is compacted.
最终，经测定，密实化污泥颗粒的污泥粒径为220～280μm，含水率小于85%。Finally, it is determined that the sludge particle size of the compacted sludge particles is 220-280 μm, and the moisture content is less than 85%.
实施例二Embodiment two
首先，控制高剪切场力破碎处理均质化反应中的破碎强度为350s-1，(搅拌装置转速约1200r/min)，持续时间为15min，对高悬浊体系废水进行高剪切力场破碎以完成悬浊体系杂质颗粒的均质化。First, control the crushing strength of the high shear field force crushing treatment in the homogenization reaction to 350s -1 (the rotation speed of the stirring device is about 1200r/min), and the duration is 15min. Crushed to complete the homogenization of impurity particles in the suspension system.
随后，经均质化处理的废水进入混凝造粒区；混凝造粒共有三个步骤：Subsequently, the homogenized wastewater enters the coagulation and granulation area; there are three steps in coagulation and granulation:
快速絮凝区，控制搅拌装置的搅拌强度维持在150s-1，采用铝盐类絮凝剂，投加量控制在80mg/L，反应时间2min，使废水中的悬浊质脱稳聚集；In the fast flocculation area, the stirring intensity of the stirring device is controlled to be maintained at 150s -1 , the aluminum salt flocculant is used, the dosage is controlled at 80mg/L, and the reaction time is 2min, so that the suspended matter in the wastewater is destabilized and aggregated;
凝聚造粒区，控制搅拌装置的搅拌强度维持在20s-1，采用阳离子型聚丙烯酰胺，投加量控制在5mg/L，反应时间10min，进行凝聚造粒；In the agglomeration and granulation area, the stirring intensity of the stirring device is controlled to maintain at 20s -1 , cationic polyacrylamide is used, the dosage is controlled at 5mg/L, and the reaction time is 10min, for agglomeration and granulation;
延时搅拌区，控制搅拌装置的搅拌强度维持在30s-1，持续时间15min，使凝聚造粒所形成的颗粒污泥密实化。In the delayed stirring zone, the stirring intensity of the stirring device is controlled to be maintained at 30s -1 for 15 minutes to make the granular sludge formed by coagulation and granulation compact.
最终，经测定，密实化污泥颗粒的污泥粒径为260～300μm，含水率小于85%。Finally, it is determined that the sludge particle size of the compacted sludge particles is 260-300 μm, and the moisture content is less than 85%.
实施例三Embodiment three
首先，控制高剪切场力破碎处理均质化反应中的破碎强度为315s-1，(搅拌装置转速约1000r/min)，持续时间为12min，对高悬浊体系废水进行高剪切力场破碎以完成悬浊体系杂质颗粒的均质化。First, control the crushing strength of high shear field force in the homogenization reaction to be 315s -1 (the rotation speed of the stirring device is about 1000r/min), and the duration is 12min. Crushed to complete the homogenization of impurity particles in the suspension system.
随后，经均质化处理的废水进入混凝造粒区；混凝造粒共有三个步骤：Subsequently, the homogenized wastewater enters the coagulation and granulation area; there are three steps in coagulation and granulation:
快速絮凝区，控制搅拌装置的搅拌强度维持在140s-1，采用铝盐类絮凝剂，投加量控制在120mg/L，反应时间1min，使废水中的悬浊质脱稳聚集；In the fast flocculation area, the stirring intensity of the stirring device is controlled to be maintained at 140s -1 , the aluminum salt flocculant is used, the dosage is controlled at 120mg/L, and the reaction time is 1min, so that the suspended matter in the wastewater is destabilized and aggregated;
凝聚造粒区，控制搅拌装置的搅拌强度维持在18s-1，采用阳离子型聚丙烯酰胺，投加量控制在10mg/L，反应时间9min，在适当的水力剪切作用下凝聚造粒；In the coagulation and granulation area, the stirring intensity of the stirring device is controlled to maintain at 18s -1 , cationic polyacrylamide is used, the dosage is controlled at 10mg/L, the reaction time is 9min, and the granulation is coagulated under appropriate hydraulic shearing;
延时搅拌区，控制搅拌装置的搅拌强度维持在26s-1，持续时间18min，使凝聚造粒所形成的颗粒污泥密实化。In the delayed stirring zone, the stirring intensity of the stirring device is controlled to be maintained at 26s -1 for 18 minutes, so that the granular sludge formed by coagulation and granulation is compacted.
密实化污泥颗粒，其污泥粒径为200～220μm，含水率小于85%。Densified sludge particles, the sludge particle size is 200-220μm, and the moisture content is less than 85%.
Claims (8)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410085481.0A CN103818989B (en) | 2014-03-10 | 2014-03-10 | A treatment method and device for delayed stirring coagulation granulation of wastewater in a high-suspension system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410085481.0A CN103818989B (en) | 2014-03-10 | 2014-03-10 | A treatment method and device for delayed stirring coagulation granulation of wastewater in a high-suspension system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103818989A true CN103818989A (en) | 2014-05-28 |
| CN103818989B CN103818989B (en) | 2015-05-27 |
Family
ID=50754329
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410085481.0A Active CN103818989B (en) | 2014-03-10 | 2014-03-10 | A treatment method and device for delayed stirring coagulation granulation of wastewater in a high-suspension system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103818989B (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101117250A (en) * | 2007-06-01 | 2008-02-06 | 华电水处理技术工程有限公司 | Method and equipment for purifying recirculated cooling water or town B-grade sewage |
-
2014
- 2014-03-10 CN CN201410085481.0A patent/CN103818989B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101117250A (en) * | 2007-06-01 | 2008-02-06 | 华电水处理技术工程有限公司 | Method and equipment for purifying recirculated cooling water or town B-grade sewage |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103818989B (en) | 2015-05-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105084576B (en) | A kind of high concentration aqueous's ink liquid waste processing and its method for sludge dewatering | |
| JP3691768B2 (en) | Sludge treatment method | |
| JP2011230038A (en) | Water treatment apparatus | |
| CN102295371A (en) | Integrated-processing process for river bottom-mud dredging residual water and equipment thereof | |
| CN101948158A (en) | Method for treating sewage by modified settling agent strengthening flocculation/coagulation | |
| CN109937190A (en) | Wastewater treatment method and waste water treatment device | |
| Fast et al. | Ultrasound-chitosan enhanced flocculation of low algal turbid waters | |
| Chen et al. | Comparison of acid-soluble and water-soluble chitosan as coagulants in removing bentonite suspensions | |
| RU2007141413A (en) | METHOD AND DEVICE FOR PRODUCING CONCENTRATED POLYMER SOLUTIONS | |
| CN111717974A (en) | A composite flocculant | |
| Sun et al. | Effective sludge dewatering technique using the combination of Fenton's reagent and CPAM | |
| CN103803690A (en) | Flocculating agent for simulating composition of microorganism extracellular polymeric substances and application method thereof | |
| Al-Risheq et al. | Influence of combined natural deep eutectic solvent and polyacrylamide on the flocculation and rheological behaviors of bentonite dispersion | |
| Ramli et al. | Potential use of tin tetrachloride and polyacrylamide as a coagulant-coagulant aid in the treatment of highly coloured and turbid matured landfill leachate | |
| CN101767921B (en) | Method for processing slurry with enteromorpha as coagulant aid | |
| CN103818989B (en) | A treatment method and device for delayed stirring coagulation granulation of wastewater in a high-suspension system | |
| CN114524481A (en) | Water purifying agent and water purifying method | |
| CN102863130B (en) | The treatment process of active sludge | |
| CN105000647A (en) | Solid slow release coagulant material for initial rainwater treatment and preparation method thereof | |
| CN104402100B (en) | The preparation method and applications of the inorganic flocculating agent with vermiculite mineral as raw material | |
| Zhao et al. | RETRACTED: Evaluation of floc properties and membrane fouling in coagulation–ultrafiltration system: The role of Enteromorpha polysaccharides | |
| CN203382630U (en) | Sludge treatment system | |
| CN106630542A (en) | Flocculant for treating slurry, preparation method and slurry treatment method | |
| CN105271571A (en) | Sewage treatment core process | |
| Mao et al. | Methylated mud snail protein as a bio-flocculant for high turbidity wastewater treatment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Jin Pengkang Inventor after: Wang Xiaochang Inventor before: Jin Pengkang Inventor before: Ren Wuang Inventor before: Wang Xiaochang |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210705 Address after: 721000 No.1, north section of Fenghuang 6th Road, high tech Development Zone, Baoji City, Shaanxi Province Patentee after: SHAANXI URSTAR ENVIRONMENTAL SCIENCE AND TECHNOLOGY Co.,Ltd. Address before: 710055 No. 13, Yanta Road, Shaanxi, Xi'an Patentee before: XI'AN University OF ARCHITECTURE & TECHNOLOGY |