阅读说明：本技术 一种快速截留汞的过滤系统及其组装方法 (A kind of filtration system and its assemble method of quick retention mercury ) 是由 谭杨赞 于 2018-05-21 设计创作，主要内容包括：本发明公开了一种快速截留汞的过滤系统及其组装方法,所述过滤系统包括圆形管道,入水口,出水口,网状支撑板和硒截留板,其中所述入水口包含一个减压阀和一个限流阀,所述网状支撑板等间距分布于圆形管道中,所述硒截留板固定在所述网状支撑板上方,所述硒截留板包括支撑海绵和均匀分布在所述支撑海绵内部的硒纳米颗粒,所述硒纳米颗粒的大小为200纳米,所述硒纳米颗粒的重量占比为所述支撑海绵的5%；所述组装方法包括了硒纳米颗粒的热反应成核以及化学反应生长以及各组件的组装。该过滤系统可以快速的将被汞污染的水体中的汞截留在硒截留板中,效果显著,处理效率高。(The invention discloses the filtration systems and its assemble method of a kind of quickly retention mercury, the filtration system includes circular pipe, water inlet, water outlet, mesh-supported plate and selenium retain plate, wherein the water inlet includes a pressure reducing valve and a flow-limiting valve, the mesh-supported plate is equally distributed in circular pipe, the selenium retention plate is fixed on above the mesh-supported plate, the selenium retention plate includes the selenium nano particle for supporting sponge and being evenly distributed on inside the support sponge, the size of the selenium nano particle is 200 nanometers, the weight accounting of the selenium nano particle is the 5% of the support sponge；The assemble method includes the thermal response nucleation of selenium nano particle and chemical reaction is grown and the assembling of each component.Mercury in the water body being mercury-contaminated can be quickly trapped in selenium retention plate by the filtration system, significant effect, and treatment effeciency is high.)

1. a kind of filtration system of quickly retention mercury, including circular pipe, water inlet, water outlet, mesh-supported plate and selenium retention Plate, wherein the water inlet includes a pressure reducing valve and a flow-limiting valve, wherein the mesh-supported plate is equally distributed in circle In shape pipeline, wherein selenium retention plate is fixed on above the mesh-supported plate, wherein the mesh-supported plate and the selenium The number for retaining plate is all 3, and the selenium retention plate includes the selenium for supporting sponge and being evenly distributed on inside the support sponge Nano particle, the support sponge are polyurethane foam sponge, and the size of the selenium nano particle is 200 nanometers, and the selenium is received The weight accounting of rice grain is the 5% of the support sponge, is uniformly distributed in the inside of sponge.

2. a kind of assemble method of the filtration system of quickly retention mercury, includes following steps: firstly, preparation concentration is 15% aqueous sucrose solution, the hydroquinone aqueous solution that the selenous acid aqueous solution and concentration that concentration is 10% are 20%；Take poly- ammonia Ester foaming sponge is simultaneously cut into a thickness of 2 centimetres, and the round pie that diameter is 5 centimetres, number is 3；The polyurethane is sent out Bubble sponge is dipped into aqueous sucrose solution 20 minutes, after taking-up, then is dipped into selenous acid aqueous solution 35 minutes, after taking-up, turns Move on in 100 degrees Celsius of baking oven, in the case where maintaining the circulation of air heating, drying moisture and react 3 hours；It simultaneously will be right Benzenediol aqueous solution and selenous acid aqueous solution are heated separately to 68 degrees Celsius, and the sponge after above-mentioned heat treatment is taken out Afterwards, 8 minutes in the hydroquinone aqueous solution after being first dipped into heating, after taking-up, then it is dipped into the selenous acid aqueous solution after heating In, reaction after ten minutes, is transferred in ice water mixed liquor at once, makes the growth response Quick stop of selenium nano particle, then use Water cleans 3 times；Drying obtains selenium and retains 3 pieces of plate；Then by selenium retention plate be fixed to mesh-supported plate on, then with round tube Road, water inlet, water outlet, pressure reducing valve and flow-limiting valve assemble, and obtain a kind of filtration system of quickly retention mercury.

Technical field

The present invention relates to the filtration system and assemble method of a kind of quickly retention mercury, specifically a kind of utilize is received based on selenium The filtration system and assemble method for Mercury sewage processing of the selenium retention plate of rice grain.

Background technique

The water body of mercury pollution is most intractable one of which in all contaminated by heavy metals sewage.In plastic cement, battery, In electronics industry, the processing containing Mercury sewage is always a problem, and common processing method includes sulphide precipitation, and active carbon is inhaled Attached method etc..But how the efficient content by mercury in sewage quickly reduces to low as far as possible, is one critically important and have The technology of great economy and environment protection significance.Simultaneously importantly, the mercury contaminants needs being trapped are stably fixed to retain In device, without dispersing again or being lost in water body, further separating treatment is not needed yet.

Summary of the invention

The purpose of the present invention is prepare a kind of system that comes of quickly retention mercury.

The filtration system of this quick retention mercury includes circular pipe, and water inlet, water outlet, mesh-supported plate and selenium are cut Plate is stayed, wherein the water inlet includes a pressure reducing valve and a flow-limiting valve, wherein the mesh-supported plate is equally distributed in In circular pipe, wherein selenium retention plate is fixed on above the mesh-supported plate, wherein the mesh-supported plate and described The number that selenium retains plate is all 3, parallel between each other equidistantly to arrange, and the selenium retention plate includes support sponge and uniform point Selenium nano particle of the cloth inside the support sponge, the support sponge is polyurethane foam sponge, the selenium nano particle Size be 200 nanometers, the weight accounting of the selenium nano particle is the 5% of the support sponge.

Above-mentioned filtration system is prepared, first has to that the technology of growth is nucleated and chemically reacted with thermal response to prepare core the most The selenium nano particle of the heart.Prepare the aqueous sucrose solution that concentration is 15%, the selenous acid aqueous solution and concentration that concentration is 10% are 20% hydroquinone aqueous solution；Polyurethane foam sponge is taken simultaneously and is cut into a thickness of 2 centimetres, the circle that diameter is 5 centimetres Pie, number are 3；The polyurethane foam sponge is dipped into aqueous sucrose solution 20 minutes, after taking-up, then is dipped into Asia 35 minutes in selenic acid aqueous solution, after taking-up, it is transferred in 100 degrees Celsius of baking oven, is heated in the case where maintaining the circulation of air It dries moisture and reacts 3 hours；Hydroquinone aqueous solution and selenous acid aqueous solution are heated separately to 68 degrees Celsius simultaneously, it will After sponge after above-mentioned heat treatment is taken out, 8 minutes in the hydroquinone aqueous solution after being first dipped into heating, after taking-up, then In selenous acid aqueous solution after being dipped into heating, reaction after ten minutes, is transferred in ice water mixed liquor at once, makes selenium nano particle Growth response Quick stop, then wash with water 3 times；Drying obtains selenium and retains 3 pieces of plate；Then selenium retention plate is fixed to net It in shape support plate, then assembles, obtains a kind of quick with circular pipe, water inlet, water outlet, pressure reducing valve and flow-limiting valve Retain the filtration system of mercury.

In use, mercurous sewage is injected from water inlet, the pressure of the sewage of injection is controlled with pressure reducing valve and flow-limiting valve Power and flow velocity can guarantee best rejection effect in this way.On the one hand foam sponge is used as the supporter of selenium nano particle, simultaneously The pollutant in sewage more than most of micron can also be retained, sewage the same in this way needs not move through pretreatment can be direct The retention of injected system progress mercury.Mercury in sewage reacts to form mercury selenide and be trapped with the selenium nano particle in selenium retention plate In selenium retention plate.It is compared with common sulphur, the water solubility for the mercury selenide that selenium nano particle is formed with mercury is formed than sulphur and mercury The water solubility of mercuric sulphide want low very more, this be why system can the efficient content by the mercury in sewage be reduced to The degree being nearly no detectable greatly improves the rejection effect of mercury in sewage.Meanwhile the specific surface of selenium nano particle is than common The specific surface of sulphur powder want high very more, the reactivity greatly improved, this be one of the raising system rate of filtration it is important because Element.Most of all, the mercury retained is fixed on inside sponge, avoid mercury contaminants newly disperse together with retention weight or A possibility that being lost in water body.So, mercury contaminants can be abandoned directly together with sponge, without further dividing From processing.Meanwhile filtration system directly changes new selenium retention plate, so that it may which horse back continuous work is divided into simple and convenient.

Detailed description of the invention

Fig. 1 is the filtration system structural schematic diagram of quick retention mercury of the present invention.

Specific embodiment

Below in conjunction with the drawings and specific embodiments, the invention will be further described.

A kind of filtration system of quick retention mercury, which includes circular pipe 1, water inlet 2, water outlet 3, mesh-supporteds Plate 4 and selenium retain plate 5, wherein the water inlet includes a pressure reducing valve 6 and a flow-limiting valve 7, wherein the mesh-supported plate It is equally distributed in circular pipe, wherein selenium retention plate is fixed on above the mesh-supported plate, wherein described netted Support plate and the number of selenium retention plate are all 3, between each other parallel equidistant arrangement, and the selenium retention plate includes support Sponge and the selenium nano particle being evenly distributed on inside the support sponge, the support sponge are polyurethane foam sponge, institute The size for stating selenium nano particle is 200 nanometers, and the weight accounting of the selenium nano particle is the 5% of the support sponge.

The step of preparing the filtration system of above-mentioned quick retention mercury include:

The first step, the aqueous sucrose solution that compound concentration is 15% respectively, the selenous acid aqueous solution and concentration that concentration is 10% are 20% hydroquinone aqueous solution；Polyurethane foam sponge is taken simultaneously and is cut into a thickness of 2 centimetres, the circle that diameter is 5 centimetres Pie, number are 3.

The polyurethane foam sponge is dipped into aqueous sucrose solution 20 minutes, after taking-up, then is dipped into Asia by second step 35 minutes in selenic acid aqueous solution, after taking-up, it is transferred in 100 degrees Celsius of baking oven, is heated in the case where maintaining the circulation of air It dries moisture and reacts 3 hours.In this step, the oxidation reaction under high temperature make selenium atom foam sponge internal nucleation simultaneously It is tightly fixed to inside sponge.

Hydroquinone aqueous solution and selenous acid aqueous solution are heated separately to 68 degrees Celsius by third step, at above-mentioned heat After sponge after reason is taken out, 8 minutes in the hydroquinone aqueous solution after being first dipped into heating, after taking-up, then it is dipped into and adds In selenous acid aqueous solution after heat, reaction after ten minutes, makes selenium nano particle grow up to 200 rans, then shifts at once Into ice water mixed liquor, make the growth response Quick stop of selenium nano particle, then washes with water 3 times；Drying obtains selenium retention 3 pieces of plate.

3 blocks of selenium retention plates are fixed on 3 blocks of mesh-supported plates by the 4th step, then with circular pipe, water inlet, water outlet Mouthful, pressure reducing valve and flow-limiting valve assemble, and obtain a kind of filtration system of quickly retention mercury.