CN104071930B - A kind of for the efficient composite purification system containing algae wastewater treatment - Google Patents
A kind of for the efficient composite purification system containing algae wastewater treatment Download PDFInfo
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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
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/30—Wastewater or sewage treatment systems using renewable energies
- Y02W10/37—Wastewater or sewage treatment systems using renewable energies using solar energy
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Abstract
本发明公开了一种用于含藻废水处理的高效复合式净化系统，包括一净化容器，其特征在于：净化容器由下至上依次由过滤室(1)、等离子体反应室(2)、絮凝室(3)和集水室(4)组成，所述过滤室(1)与等离子体反应室(2)之间设有滤网，所述等离子体反应室与絮凝室之间设有筛网层；所述净化容器位于过滤室处设有进水口，位于集水室处设有出水口。本发明采用集成化组合工艺，占地面积小、除藻效率高、药剂使用量小、出水水质好；系统采用等离子体放电氧化除藻，大大降低了恶臭气体的散发，降低了恶臭气体对大气环境的污染，该系统不仅具有高效除藻率，而且对于SS、CODCr也有较好的去除效果。
The invention discloses a high-efficiency composite purification system for treating algae-containing wastewater, which includes a purification container, and is characterized in that: the purification container is sequentially composed of a filter chamber (1), a plasma reaction chamber (2), a flocculation chamber (3) and water collection chamber (4), a filter is provided between the filter chamber (1) and the plasma reaction chamber (2), and a screen is provided between the plasma reaction chamber and the flocculation chamber layer; the purification container is provided with a water inlet at the filter chamber and a water outlet at the water collection chamber. The present invention adopts an integrated combination process, which has small footprint, high algae removal efficiency, small dosage of chemicals, and good water quality; the system uses plasma discharge oxidation to remove algae, which greatly reduces the emission of malodorous gas and reduces the impact of malodorous gas on the atmosphere. Environmental pollution, the system not only has a high algae removal rate, but also has a good removal effect on SS and COD Cr .
Description
技术领域technical field
本发明涉及除藻技术，属于环境保护技术领域，具体说是一种适用于含藻废水处理的高效复合式净化系统。The invention relates to algae removal technology, which belongs to the technical field of environmental protection, in particular to a high-efficiency composite purification system suitable for the treatment of algae-containing wastewater.
背景技术Background technique
近年来，随着社会经济的快速发展，大量化学物质的排放使得水体富营养化现象日益严重，藻类大量繁殖，导致水体透明度下降，溶解氧减少，水质不断恶化，水体底层呈缺氧状态，导致一些鱼类窒息死亡。其中，有些藻类会产生藻毒素，对水生生物和人畜的饮水安全也造成了威胁，有些藻类会产生异味，影响周围居民的生活环境。In recent years, with the rapid development of social economy, the discharge of a large number of chemical substances has made the eutrophication of the water body increasingly serious, and the algae blooms in large numbers, resulting in a decrease in water transparency, a decrease in dissolved oxygen, and a continuous deterioration of water quality. The bottom of the water body is hypoxic, resulting in Some fish suffocate to death. Among them, some algae can produce algal toxins, which also pose a threat to the safety of drinking water for aquatic organisms and humans and animals. Some algae can produce peculiar smells, which affect the living environment of surrounding residents.
随着水资源短缺问题的加剧，对于含藻废水的处理特别是对与人类生活最密切的诸如一些以富营养化的湖泊和水库为饮用水水源的地区、城镇污水处理厂以及城市景观水体的处理已成为当务之急。近几十年来，含藻废水的治理一直困扰着诸多学者，至今未找到一套理想的治理方法。With the aggravation of the shortage of water resources, the treatment of algae-containing wastewater is especially important for areas most closely related to human life, such as some eutrophic lakes and reservoirs as drinking water sources, urban sewage treatment plants, and urban landscape water bodies. Processing has become a priority. In recent decades, the treatment of algae-containing wastewater has been perplexing many scholars, and no ideal treatment method has been found so far.
目前，对于含藻废水的处理，国内外主要采取的方法有物理法、化学法和生物法。除了传统的直接过滤除藻、投加化学试剂除藻外，近几年研究较多的是气浮法、超声波和电磁波除藻法等。试验和实践证明了，仅靠单一的方法，治理的效果往往是不理想的。例如，直接过滤除藻法，虽然除藻率较高，但是除氮、除浊、除色、降低CODCr较差；投加化学试剂除藻会带来二次污染，也不利于大规模的推广应用；气浮法虽然也有较高的除藻率，但是也有其弊端：气浮的浮渣难以处理，气浮池通常散发出恶臭，导致周围环境较差，为了保证气浮的效果，在气浮前需要预加氯，但这会危及饮用水的安全。At present, for the treatment of algae-containing wastewater, the main methods adopted at home and abroad include physical, chemical and biological methods. In addition to the traditional algae removal by direct filtration and the addition of chemical reagents, air flotation, ultrasonic and electromagnetic wave algae removal methods have been studied more in recent years. Experiments and practice have proved that only relying on a single method, the effect of governance is often unsatisfactory. For example, although the direct filtration algae removal method has a high algae removal rate, it is poor in nitrogen removal, turbidity removal, color removal, and COD Cr reduction; adding chemical reagents to remove algae will bring secondary pollution, which is not conducive to large-scale Popularization and application; although the air flotation method also has a high algae removal rate, it also has its disadvantages: the scum of the air flotation is difficult to deal with, and the air flotation tank usually emits a foul smell, resulting in a poor surrounding environment. Pre-chlorination is required before flotation, but this jeopardizes the safety of drinking water.
发明内容Contents of the invention
本发明的目的是针对现有技术的不足，在总结各种除藻技术的基础上，提出一种除藻效率高、耗能低、环保节能的高效复合式含藻废水净化系统，为解决含藻废水处理难的问题提供一项新的技术支撑。The purpose of the present invention is to address the deficiencies in the prior art, and on the basis of summarizing various algae removal technologies, propose a high-efficiency compound algae-containing wastewater purification system with high algae removal efficiency, low energy consumption, environmental protection and energy saving, in order to solve the problem of algae-containing wastewater It provides a new technical support for the difficult problem of algae wastewater treatment.
为了达到上述目的，本发明采用如下技术方案：In order to achieve the above object, the present invention adopts following technical scheme:
一种用于含藻废水处理的高效复合式净化系统，包括一净化容器，其结构特点在于：所述净化容器由下至上依次由过滤室、等离子体反应室、絮凝室和集水室组成，所述过滤室与等离子体反应室之间设有滤网，所述等离子体反应室与絮凝室之间设有筛网；所述净化容器位于过滤室处设有进水口，位于集水室处设有出水口。A high-efficiency composite purification system for algae-containing wastewater treatment, including a purification container, and its structural characteristics are: the purification container is composed of a filter chamber, a plasma reaction chamber, a flocculation chamber and a water collection chamber in sequence from bottom to top, A filter is provided between the filter chamber and the plasma reaction chamber, and a screen is provided between the plasma reaction chamber and the flocculation chamber; the purification container is provided with a water inlet at the filter chamber, and is located at the water collection chamber Has a water outlet.
本发明净化系统结构特点还在于：The structural features of the purification system of the present invention are also:
所述集水室由斜置的絮凝水折流板将其斜分为左上部和右下部，所述絮凝水折流板上部向上折弯与净化容器的侧壁形成絮凝水上行通道，位于上行通道的顶部设有一将絮凝水上层气浮体刮入集泥槽的刮渣装置，所述出水口设于左上部的集水室侧壁上方，位于进水口前方设有与集水室顶部连接垂直向下设置的清水折流板；所述清水折流板的底端与絮凝水折流板存有水流通道。The water collecting chamber is obliquely divided into upper left part and lower right part by the oblique flocculation water baffle. The top of the channel is provided with a slag scraping device for scraping the upper layer of the flocculation water into the mud collection tank. The clear water baffle is arranged downward; the bottom of the clear water baffle and the flocculation water baffle have a water flow channel.
所述絮凝室内设有网式布药管，所述网式布药管上设均匀排列有出药孔，所述网式布药管通过管路与设在净化容器的絮凝剂投加装置相连。The flocculation chamber is equipped with a net-type drug distribution pipe, and the mesh-type drug distribution pipe is provided with uniformly arranged drug outlet holes, and the mesh-type drug distribution pipe is connected to the flocculant dosing device installed in the purification container through a pipeline. .
所述絮凝室和过滤室之间设有回流管路，所述回流管路用于絮凝室中部分废水回流至过滤室，与过滤室中的进水充分混合后再依次进入等离子体反应室、絮凝室。A reflux pipeline is provided between the flocculation chamber and the filter chamber, and the reflux pipeline is used to return part of the wastewater in the flocculation chamber to the filter chamber, fully mix with the influent water in the filter chamber, and then enter the plasma reaction chamber, Flocculation chamber.
所述净化系统还包括一向等离子体反应室充入空气的充气装置。The purification system also includes an air charging device for charging air into the plasma reaction chamber.
所述等离子体反应室内设有由针电极和板电极构成的针-板式反应器，所述针电极位于所述的板电极之下，所述针电极和板电极分别与设在净化容器外的高频高压电源的正极和负极相连。A needle-plate reactor consisting of a needle electrode and a plate electrode is provided in the plasma reaction chamber, the needle electrode is located under the plate electrode, and the needle electrode and the plate electrode are respectively connected with the The positive and negative poles of the high-frequency high-voltage power supply are connected.
所述回流管路上设有太阳能水泵系统。The return pipeline is provided with a solar water pump system.
所述网式布药管由中心管、沿中心管径向排列的米字形阵列管以及沿中心管圆周方向排列的环形阵列管，所述米字型阵列管和环形阵列管上均有排列有出药孔；所述中心管、米字型阵列管和环形阵列管相互连通。The net-type drug distribution tube consists of a central tube, a rice-shaped array tube arranged radially along the central tube, and an annular array tube arranged along the circumferential direction of the central tube. Both the rice-shaped array tube and the annular array tube are arranged with The drug outlet hole; the central tube, the P-shaped array tube and the annular array tube communicate with each other.
所述滤网目数范围为120～200目；所述筛网孔径为2～5mm。The mesh number of the filter mesh ranges from 120 to 200 mesh; the aperture of the mesh mesh is 2 to 5mm.
所述过滤室设有排渣口。The filter chamber is provided with a slag outlet.
与已有技术相比，本发明有益效果体现在：Compared with the prior art, the beneficial effects of the present invention are reflected in:
1、本发明净化系统采取集成化组合工艺，将各单元由下到上串联起来，减少了占地面积。1. The purification system of the present invention adopts an integrated combination process, and the units are connected in series from bottom to top, which reduces the occupied area.
2、本发明系统综合了过滤、气浮、等离子体放电和絮凝等技术，具有除藻效率高、药剂使用量小、出水水质好等特点，对藻的去除率高达90％以上。2. The system of the present invention integrates technologies such as filtration, air flotation, plasma discharge and flocculation, and has the characteristics of high algae removal efficiency, small dosage of chemicals, and good effluent quality, and the removal rate of algae is as high as 90%.
3、本发明系统采用以等离子体放电氧化技术为主体的复合式净化系统除藻，大大降低了传统工艺中因藻类上浮而散发的恶臭，降低了恶臭气体对大气环境的污染，同时该系统省去了传统的加氯处理单元并能够降低藻毒素的释放几率，增加了饮用水的安全性。3. The system of the present invention adopts a composite purification system based on plasma discharge oxidation technology to remove algae, which greatly reduces the stench caused by the floating of algae in the traditional process, and reduces the pollution of the stench gas to the atmospheric environment. At the same time, the system saves It eliminates the traditional chlorination treatment unit and can reduce the chance of release of algae toxins, increasing the safety of drinking water.
4、本发明系统采用太阳能水泵系统对絮凝室废水进行回流，大大将低了能耗；4. The system of the present invention uses a solar water pump system to reflow the wastewater in the flocculation chamber, which greatly reduces energy consumption;
5、本发明系统不仅具有高效除藻率，而且对于SS、CODCr也具有较好的去除效果，对SS和CODCr的去除率分别达95％和85％以上。5. The system of the present invention not only has a high algae removal rate, but also has a good removal effect on SS and COD Cr , and the removal rates on SS and COD Cr are over 95% and 85% respectively.
附图说明Description of drawings
图1为本发明高效复合式净化系统立面图。Fig. 1 is the elevation view of the high-efficiency composite purification system of the present invention.
图2为本发明高效复合式净化系统的网式布药管示意图。Fig. 2 is a schematic diagram of the net-type drug distribution pipe of the high-efficiency composite purification system of the present invention.
图3为本发明高效复合式净化系统的整流栅示意图。Fig. 3 is a schematic diagram of the rectifying grid of the high-efficiency composite purification system of the present invention.
图中：1—过滤室，2—等离子体反应室，3—絮凝室，4—集水室，5—高频高压电源，6—絮凝剂投加装置，7—进水口，8—排渣口，9—滤网，10—针电极，11—板电极，12—整流栅，13—网式布药管，131—中心管，132—米字形阵列管，133—环形阵列管，134—出药孔，14—刮渣装置，15—集泥槽，16—出水口，17—絮凝水体折流板，18—清水折流板，19—充气泵，20—储气罐，21—气体流量计，22—电磁阀Ⅰ，23—光伏阵列，24—光伏扬水变频器，25—水泵，26—电磁阀Ⅱ、27填料层、28筛网。In the figure: 1—filter chamber, 2—plasma reaction chamber, 3—flocculation chamber, 4—water collection chamber, 5—high frequency and high voltage power supply, 6—flocculant dosing device, 7—water inlet, 8—slag discharge Mouth, 9—filter screen, 10—needle electrode, 11—plate electrode, 12—rectifier grid, 13—network drug distribution tube, 131—central tube, 132—Mziform array tube, 133—annular array tube, 134— Drug outlet hole, 14—slag scraping device, 15—silt collection tank, 16—water outlet, 17—flocculation water baffle, 18—clear water baffle, 19—air pump, 20—gas storage tank, 21—gas Flow meter, 22—solenoid valve I, 23—photovoltaic array, 24—photovoltaic pumping inverter, 25—water pump, 26—solenoid valve II, 27 packing layer, 28 screen.
具体实施方式detailed description
为使本发明的目的、技术方案及优点更加清楚，下面结合附图对本发明作进一步的说明。In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described below in conjunction with the accompanying drawings.
参见附图1所示的一种用于含藻废水处理的高效复合式净化系统，其主体为一净化容器，该容器由下至上依次由过滤室1、等离子体反应室2、絮凝室3、集水室4组成。过滤室1与等离子体反应室2之间设有滤网，等离子体反应室与絮凝室之间设有筛网28；净化容器位于过滤室处设有进水口，位于集水室处设有出水口。Referring to a kind of high-efficiency composite purification system for the treatment of algae-containing wastewater shown in accompanying drawing 1, its main body is a purification container, and this container consists of filter chamber 1, plasma reaction chamber 2, flocculation chamber 3, The water collection chamber is composed of 4. A filter is provided between the filter chamber 1 and the plasma reaction chamber 2, and a screen 28 is provided between the plasma reaction chamber and the flocculation chamber; the purification container is provided with a water inlet at the filter chamber, and an outlet at the water collection chamber. Shuikou.
如图1所示，过滤室1侧壁底部设置进水口7和排渣口8，顶部设置有滤网9，滤网9目数范围为120～200目；所述的含藻废水通过滤网9的过滤作用，去除废水中大部分的悬浮物和部分藻类，悬浮物和藻类沉淀到底部，最终通过过滤室1侧壁底部设置的排渣口8排出。As shown in Figure 1, a water inlet 7 and a slag outlet 8 are provided at the bottom of the side wall of the filter chamber 1, and a filter screen 9 is provided at the top, and the mesh number of the filter screen 9 ranges from 120 to 200 mesh; the algae-containing wastewater passes through the filter screen 9 to remove most of the suspended solids and some algae in the wastewater, the suspended solids and algae settle to the bottom, and finally are discharged through the slagging outlet 8 provided at the bottom of the side wall of the filter chamber 1.
如图1所示，等离子体反应室2内设置针板式反应器，针板式反应器由针电极10和板电极11组成；所述的针电极10位于所述的板电极11之下，二者之间根据不同设备以及反应条件留有相应的距离；所述的板电极上方是直径为5～8mm的玻璃球作为固体填料层27，固定填料层的承托板开有进水孔；所述的针板式反应器的两极分别与外部设置的所述的高频高压电源5相连；所述的高频高压电源5电源可输出峰值(VPP)0～100kV，脉宽500～1000ns，脉冲频率1～200Hz可调；所述的针板式反应器针电极10可以采用中空的不锈钢针电极，板电极11材质为正方形不锈钢板，其面积的大小和正负电极的间距应根据实际需要电流的大小和处理水量来设计；所述的针板式反应器外部用绝缘套包裹，以防止漏电或触电。As shown in Figure 1, a pin-plate reactor is arranged in the plasma reaction chamber 2, and the pin-plate reactor is made up of a needle electrode 10 and a plate electrode 11; the needle electrode 10 is positioned under the plate electrode 11, and both There is a corresponding distance between them according to different equipment and reaction conditions; above the plate electrodes, glass balls with a diameter of 5 to 8 mm are used as the solid packing layer 27, and the supporting plate for fixing the packing layer has water inlet holes; The two poles of the pin-plate reactor are respectively connected to the external high-frequency high-voltage power supply 5; the high-frequency high-voltage power supply 5 can output a peak value (V PP ) of 0 to 100 kV, a pulse width of 500 to 1000 ns, and a pulse frequency of 1-200Hz adjustable; the needle-plate reactor needle electrode 10 can be a hollow stainless steel needle electrode, and the material of the plate electrode 11 is a square stainless steel plate. The size of the area and the distance between the positive and negative electrodes should be based on the actual required current. and the amount of water to be treated; the outside of the pin-plate reactor is wrapped with an insulating sleeve to prevent electric leakage or electric shock.
如图1所示，絮凝室3底部设置有整流栅12，如图3所示，整流栅12相邻支架之间为孔径为2～5mm的不锈钢筛网28，其作用是将上浮的大气泡分割为数目更多的小气泡，增加与絮凝剂的接触面积，从而提高藻类的去除率；所述的絮凝室3顶部还设置有网式布药管13，网式布药管上设均匀排列有出药孔，网式布药管13通过加药管线与外部设置的所述的絮凝剂投加装置6相连，絮凝剂投加装置6为自动加药装置；所述的网式布药管13是用PP聚乙烯材质制成，布药管上开有均匀分布的小孔；所述的絮凝室3中部分废水经设置在外部的太阳能水泵系统回流至过滤室1，与过滤室1中的进水充分混合后再依次进入等离子体反应室、絮凝室，提高藻类的去除率。As shown in Figure 1, a rectification grid 12 is arranged at the bottom of the flocculation chamber 3, as shown in Figure 3, between the adjacent supports of the rectification grid 12 is a stainless steel screen 28 with an aperture of 2 to 5 mm, and its function is to remove the large air bubbles that float up. Divided into more small air bubbles, increasing the contact area with the flocculant, thereby improving the removal rate of algae; the top of the flocculation chamber 3 is also provided with a net-type drug distribution pipe 13, and the mesh-type drug distribution pipe is evenly arranged There are drug outlet holes, and the mesh drug distribution pipe 13 is connected to the externally provided flocculant dosing device 6 through the drug dosing pipeline, and the flocculant dosing device 6 is an automatic drug dosing device; the mesh drug distribution pipe 13 is made of PP polyethylene material, and uniformly distributed small holes are opened on the drug distributing pipe; part of the waste water in the flocculation chamber 3 is returned to the filter chamber 1 through the solar water pump system installed outside, and is connected with the filter chamber 1. The influent water is fully mixed and then enters the plasma reaction chamber and the flocculation chamber in turn to improve the removal rate of algae.
如图2所示，网式布药管13由中心管131、沿中心管径向排列的米字形阵列管132以及沿中心管圆周方向排列的环形阵列管133，米字型阵列管132和环形阵列管133上均匀排列有出药孔134；中心管131、米字型阵列管132和环形阵列管133相互连通。As shown in Figure 2, the net drug distribution tube 13 consists of a central tube 131, a rice-shaped array tube 132 arranged radially along the center tube, and an annular array tube 133 arranged along the circumferential direction of the central tube, the rice-shaped array tube 132 and the annular The drug outlet holes 134 are evenly arranged on the array tube 133 ; the center tube 131 , the M-shaped array tube 132 and the annular array tube 133 communicate with each other.
如图1所示，集水室4由斜置的絮凝水折流板17将其斜分为左上部和右下部，絮凝水折流板17上部向上折弯与净化容器的侧壁形成絮凝水上行通道，位于上行通道的顶部设有一将絮凝水上层气浮体刮入集泥槽的刮渣装置14，位于左上部的集水室侧壁上方设有出水口16，位于进水口前方设有与集水室顶部连接垂直向下设置的清水折流板18；清水折流板的底端与絮凝水折流板存有水流通道。所述的刮渣装置14为链板式刮渣机，所述的絮凝水体折流板17和清水折流板18材质为不锈钢板。As shown in Figure 1, the water collecting chamber 4 is divided into upper left part and lower right part obliquely by the inclined flocculation water baffle 17, and the upper part of the flocculation water baffle 17 is bent upwards to form a flocculation water surface The top of the upward passage is provided with a slag scraping device 14 for scraping the upper layer of the flocculation water into the mud collection tank, and the water outlet 16 is arranged above the side wall of the water collection chamber at the upper left, and is located in front of the water inlet. The top of the water collection chamber is connected to the clear water baffle 18 arranged vertically downward; the bottom of the clear water baffle and the flocculation water baffle have a water flow channel. The slag scraping device 14 is a chain plate slag scraper, and the flocculation water baffle 17 and the clear water baffle 18 are made of stainless steel.
如图1所示，充气装置主要包括充气泵19、储气罐20和气体流量计21，三者均设置有出气口并通过空气管线相连；所述的气体流量计21和所述的储气罐20之间还设置有电磁阀22；所述的气体流量计21的出气口通过空气管线与所述的等离子体反应室2相通；根据实际处理需要，通过气体流量计21来控制进入等离子体反应室2的空气量。As shown in Figure 1, the inflator mainly includes an air pump 19, an air storage tank 20 and a gas flow meter 21, all of which are provided with an air outlet and connected through an air pipeline; the gas flow meter 21 and the gas storage An electromagnetic valve 22 is also arranged between the tanks 20; the gas outlet of the gas flow meter 21 communicates with the plasma reaction chamber 2 through an air pipeline; Air volume in reaction chamber 2.
如图1所示，太阳能水泵系统包括光伏阵列23、光伏扬水变频器24和水泵25；所述的光伏扬水变频器24通过电路管线分别与光伏阵列23和水泵25相连；所述的水泵25通过废水管线分别与絮凝室3和过滤室1相通，其中，水泵25与絮凝室3连接的废水管线上还设置有电磁阀26；所述的光伏阵列23亦称太阳能电池组件，主要是将太阳的光能转化成电能，给负载水泵电机提供工作电力；所述的光伏扬水变频器24亦称控制器，主要是对太阳能水泵25的运行实施控制和调节；当需要将絮凝室3中部分废水进行回流时，打开电磁阀26，启动太阳能水泵系统，通过光伏扬水变频器24的控制和调节来控制回流水的量。As shown in Figure 1, the solar water pump system includes a photovoltaic array 23, a photovoltaic water pumping frequency converter 24 and a water pump 25; the photovoltaic water pumping frequency converter 24 is connected to the photovoltaic array 23 and the water pump 25 respectively through circuit pipelines; The waste water pipeline communicates with the flocculation chamber 3 and the filter chamber 1 respectively, wherein, a solenoid valve 26 is also arranged on the waste water pipeline connected to the water pump 25 and the flocculation chamber 3; The light energy is converted into electric energy, and the load water pump motor is provided with working power; the photovoltaic water pumping frequency converter 24 is also called a controller, which mainly controls and regulates the operation of the solar water pump 25; When returning, open the solenoid valve 26, start the solar water pump system, and control the amount of returning water through the control and adjustment of the photovoltaic water pumping frequency converter 24.
应用时，含藻废水首先经过过滤室1过滤，去除大部分的悬浮物和部分藻类后进入等离子体反应室2，等离子体反应产生的强氧化性物质通过氧化作用灭藻，灭藻后的水体进入絮凝室3与投加的絮凝剂混合絮凝，形成可分离的絮凝物，絮凝物与气泡结合形成比重小于水的气浮体，然后气浮体通过网式布药管13后进入集水室4，上浮至水面凝聚成浮渣，通过刮渣装置14刮至集泥槽15，清水经清水折流板18折流后通过出水口16排放，絮凝室3中的部分废水经太阳能水泵系统进行回流，由于回流液中含有絮凝剂等化学试剂，与进水进行混合，在集水室内即进行一定的絮凝作用，去除一部分藻类，有利于后续处理，从而提高藻类去除率。废水回流量可视具体出水水质情况而定，一般回流比不超过50％。In application, the algae-containing wastewater is first filtered through the filter chamber 1 to remove most of the suspended solids and some algae, and then enters the plasma reaction chamber 2. The strong oxidizing substances produced by the plasma reaction kill algae through oxidation, and the water body after algae killing Enter the flocculation chamber 3 and mix and flocculate with the added flocculant to form separable flocs. The flocs and air bubbles combine to form an air float with a specific gravity lower than water, and then the air float passes through the mesh drug distribution tube 13 and enters the water collection chamber 4. Float up to the water surface to condense into scum, and scrape it to the mud collection tank 15 through the slag scraping device 14. The clean water is deflected by the clean water baffle plate 18 and then discharged through the water outlet 16. Part of the waste water in the flocculation chamber 3 is refluxed by the solar water pump system. Since the reflux liquid contains chemical reagents such as flocculants, which are mixed with the influent water, a certain amount of flocculation is carried out in the water collection chamber to remove part of the algae, which is beneficial to the subsequent treatment, thereby improving the algae removal rate. The return flow of wastewater depends on the specific effluent water quality, and the return ratio generally does not exceed 50%.
本发明综合了过滤、气浮、等离子体放电和絮凝等技术，采用集成化组合工艺，不仅占地面积小，而且具有除藻效率高、药剂使用量小、出水水质好等特点；系统采用等离子体放电氧化除藻，大大降低了传统工艺中因藻类上浮而散发的恶臭，降低了恶臭气体对大气环境的污染，同时该系统省去了传统的加氯处理单元并能够降低藻毒素的释放几率，增加了饮用水的安全性；系统采用太阳能水泵系统对循环水进行回流，大大降低了能耗；该系统不仅具有高效除藻率，而且对于SS、CODCr也有较好的去除效果。The present invention integrates technologies such as filtration, air flotation, plasma discharge and flocculation, and adopts an integrated combination process, which not only occupies a small area, but also has the characteristics of high algae removal efficiency, small dosage of chemicals, and good water quality; the system adopts plasma The body discharge oxidation algae removal greatly reduces the odor caused by the floating of algae in the traditional process, and reduces the pollution of the odorous gas to the atmospheric environment. At the same time, the system eliminates the traditional chlorination treatment unit and can reduce the release probability of algae toxins , increasing the safety of drinking water; the system uses a solar water pump system to return the circulating water, which greatly reduces energy consumption; the system not only has a high algae removal rate, but also has a good removal effect on SS and COD Cr .
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