Heavy metal ion adsorbent performance testing device

Abstract

The utility model discloses a heavy metal ion adsorbent performance testing device which comprises a box body, an online heavy metal detector and a pH sensor are mounted on the box body, a wastewater tank, an acid tank and an alkali tank are arranged at the top of the box body, a stirring mechanism is arranged in the box body, a circulating pump is further arranged at the top of the box body, a water inlet of the circulating pump is connected with a water inlet pipe, and a water outlet of the circulating pump is connected with a water outlet pipe. The water inlet pipe extends into the box body, a water outlet of the circulating pump is connected with a water inlet water dividing pipe, the water inlet water dividing pipe is fixed to the top of the mounting frame, and a plurality of first connecting openings are formed in the water inlet water dividing pipe. According to the heavy metal ion adsorbent performance testing device disclosed by the utility model, wastewater in the box body is circulated to be in contact with the adsorbent in the adsorption column, and the adsorbent adsorbs the wastewater until the wastewater is saturated; the adsorption performance of the adsorbent can be obtained by monitoring the heavy metal ion content, the wastewater amount, the adsorbent amount and other parameters of the wastewater in the box body before and after adsorption and further calculating and processing.

Description

TECHNICAL FIELD

[0001] The utility model relates to adsorbent performance detection technical field, concretely relates to a heavy metal ion adsorbent performance testing device. BACKGROUND

[0002] Heavy metal has the property of enrichment and is difficult to degrade in the environment. In the process of mining, smelting and processing of heavy metals, a lot of heavy metals such as lead, mercury, cadmium and cobalt are discharged into the atmosphere, water and soil, causing serious environmental pollution. The heavy metals discharged with wastewater, even in small concentrations, can accumulate in algae and sediments, be adsorbed by the surface of fish and shellfish, and cause food chain enrichment, thereby causing public hazards. At present, there are three main methods for treating heavy metal wastewater: chemical reaction removal method, adsorption concentration separation removal method and microbial or plant removal method.

[0003] Among them, the adsorption method is to adsorb heavy metal ions in water on the surface of the adsorbent through adsorption or ion exchange, so as to remove heavy metals in water. This method is simple, easy to operate, suitable for many systems, and has little secondary pollution. It has been applied in the treatment of heavy metal wastewater. The adsorption materials for heavy metals include bentonite, zeolite, red mud, coconut shell, coated sand, activated alumina, activated carbon, and natural or synthetic metal oxides and their hydrated oxides. Due to its high efficiency, simplicity and good selectivity, the adsorption method is the core of heavy metal ion adsorption, and the selection of adsorbent is crucial. However, at present, only the structural parameters of the adsorbent are provided, and some important parameters affecting the adsorption and desorption process of heavy metals are lacking. The performance of the adsorbent is not determined, and its adsorption performance for heavy metal wastewater is not tested in practice to evaluate its advantages and disadvantages. UTILITY MODEL CONTENT

[0004] 1. The technical problem to be solved is:

[0005] In view of the above technical problems, the utility model provides a heavy metal ion adsorbent performance testing device.

[0006] 2. Technical scheme:

[0007] The utility model provides a kind of heavy metal ion adsorbent performance testing device, including box, online heavy metal detector and pH sensor are installed on the box, wastewater tank, acid tank and alkali tank are equipped on the top of box, the inside of box is equipped with stirring mechanism, the top of box is further equipped with circulating pump, the water inlet of circulating pump is connected inlet pipe, inlet pipe is inserted into the inside of box, the water outlet of circulating pump is connected inlet water branch pipe, inlet water branch pipe is fixed on the top of mounting frame, a plurality of first connecting port are equipped on inlet water branch pipe, first connecting port is connected the top water inlet of adsorption column by detachable connecting pipe, the water outlet of adsorption column is connected second connecting port on outlet water branch pipe by detachable connecting pipe, outlet water branch pipe is connected to the lower side of box, adsorption column is inserted in mobile frame, mobile frame is slidably connected on the guide rail of mounting frame, and mobile frame can be pulled out from the side of mounting frame away from box.

[0008] Preferably, the water outlet of the outlet water branch pipe and the water inlet of the inlet pipe are oppositely arranged on both sides of the inside of the box.

[0009] Further, the outlet of the wastewater tank, the acid tank and the alkali tank is equipped with a metering valve.

[0010] Further, the stirring mechanism includes a motor and a stirring paddle, and the stirring paddle is fixed to the movable end of the motor.

[0011] Further, the inside bottom of the wastewater tank is equipped with a heating coil.

[0012] Further, the top of the mobile frame is equipped with a support plate, and a plurality of insertion holes are arranged in a rectangular array on the support plate. The adsorption column is inserted into the insertion hole and supported by the support plate. The mounting frame is equipped with a fixed rod at the front and rear, and the fixed rod is close to the support plate. The fixed rod is equipped with a quick clamp.

[0013] Further, the adsorption column includes a filler column and a top cover. The top cover is threadedly connected to the top of the filler column. The top cover is equipped with a first connector. The bottom of the filler column is equipped with a second connector. The first connector and the second connector can be connected to the connecting pipe. The inside bottom of the filler column is equipped with a filter core. The outside of the filler column close to the top is equipped with a protruding flange.

[0014] 3. Beneficial effects:

[0015] The heavy metal ion adsorbent performance testing device of the utility model contacts the wastewater in the box with the adsorbent in the adsorption column, and the adsorbent absorbs the wastewater until saturation. By monitoring the heavy metal ion content, wastewater volume and adsorbent volume in the wastewater before and after adsorption, the adsorption performance of the adsorbent can be calculated and processed. The adsorption column is inserted into the mobile frame, and the mobile frame is quickly fixed by the quick clamp. The installation is simple, and the adsorbent can be replaced in batches. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is overall structure schematic view of heavy metal ion adsorbent performance testing device of the utility model.

[0017] Figure 2 It is overhead position relation schematic view of water inlet and water outlet pipe and support plate of the utility model.

[0018] Figure 3 It is structure schematic view of adsorption column of the utility model. DETAILED DESCRIPTION

[0019] The utility model will be specifically explained in connection with the drawings.

[0020] As shown in the accompanying Figure 1 to the accompanying Figure 3 , as shown,

[0021] Specific embodiment: a kind of heavy metal ion adsorbent performance testing device, including box 1, online heavy metal detector 2 and pH sensor are installed on box 1, the heavy metal ion content of wastewater in box 1 can be monitored online, the top of box 1 is equipped with wastewater tank 3, acid tank 4 and alkali tank 5, to store wastewater to be adsorbed processing, acid solution and lye respectively, the inside of box 1 is equipped with stirring mechanism 6, the top of box 1 is also equipped with circulating pump 7, the water inlet of circulating pump 7 is connected with water inlet pipe 8, water inlet pipe 8 is inserted into the inside of box 1, the water outlet of circulating pump 7 is connected with water inlet water outlet pipe 9, water inlet water outlet pipe 9 is fixed on the top of mounting bracket 10, a plurality of first connecting port are equipped on water inlet water outlet pipe 9, first connecting port is connected with the top water inlet of adsorption column 12 by detachable connecting pipe 11, adsorption column 12 is filled with adsorbent, the bottom water outlet of adsorption column 12 is connected with the second connecting port on water outlet water outlet pipe 13 by detachable connecting pipe 11, water outlet water outlet pipe 13 is connected with the side below of box 1, adsorption column 12 is inserted in mobile frame 14, mobile frame 14 is slidably connected on guide rail 15 of mounting bracket 10, mobile frame 14 can be extracted from the side of mounting bracket 10 away from box 1.

[0022] In operation, the wastewater in the wastewater tank 3 is first added into the box body 1, the heavy metal ion content of the untreated wastewater is monitored by the on-line heavy metal detector 2, the acid or alkali liquid is added into the wastewater to adjust the pH of the wastewater, the stirring mechanism 6 is started to mix the wastewater, the circulating pump 7 is started under stirring, the wastewater in the box body 1 is pumped into the water inlet and water distribution pipe 9 and is distributed into the plurality of adsorption columns 12, the adsorbent filled in the adsorption columns 12 adsorbs the heavy metal ions in the wastewater, the wastewater after adsorption treatment flows into the water outlet and water distribution pipe 13 and returns to the box body 1, and the continuous circulation is performed until the data monitored by the on-line heavy metal detector 2 no longer changes, the maximum adsorption capacity is reached, the heavy metal ion content of the untreated wastewater and the adsorbent after reaching the maximum adsorption capacity is compared, and the adsorption performance of the adsorbent can be known through calculation. The adsorption columns 12 in the embodiment are inserted into the moving frame 14 and are slidably connected to the mounting frame in a drawer shape, can be taken out as a whole after being separated from the detachable connecting pipe 11, and the adsorbent therein can be poured out or the adsorption column 12 filled with other adsorbent can be replaced, and the replacement is more convenient.

[0023] Preferably, the water outlet of the water outlet and water distribution pipe 13 and the water inlet of the water inlet pipe 8 are oppositely arranged inside the box body 1. The water outlet and the water inlet during backflow are far apart, and the backflow wastewater can be fully mixed and uniform with the wastewater in the box body 1, so that the concentration of the heavy metal ions therein is uniform.

[0024] The water outlets of the wastewater tank 3, the acid tank 4 and the alkali tank 5 are each provided with a metering valve 16. The wastewater, the acid liquid or the alkali liquid added into the box body 1 is adjusted by the metering valve 16.

[0025] The stirring mechanism 6 includes a motor 61 and a stirring paddle 62, and the stirring paddle 62 is fixed to the movable end of the motor 61.

[0026] The inside bottom of the wastewater tank 3 is provided with a heating coil 17, and the heating coil 17 is used to adjust the temperature of the wastewater in the box body 1 to meet the adsorption requirement of the adsorbent.

[0027] The top of the moving frame 14 is provided with a support plate 18, a plurality of insertion holes 19 are arranged in a rectangular array on the support plate 18, the adsorption columns 12 are inserted into the insertion holes 19 and are supported by the support plate 18, the mounting frame 10 is provided with a fixed rod 20 at the front and rear thereof, the fixed rod 20 is close to the support plate 18, and a quick clamp 21 is installed on the fixed rod 20. The support plate 18 is pressed downward by the quick clamp 21 to prevent the moving frame 14 from slipping off from the guide rail 15.

[0028] The adsorption column 12 includes a packing column 121 and a top cover 122. The top cover 122 is threaded to the top of the packing column 121. By unscrewing the top cover 122, adsorbent can be added into the packing column 121. The top cover 122 is provided with a first connector, and the bottom of the packing column 121 is provided with a second connector. The first and second connectors can be connected to the connecting pipe 11, thereby connecting the inlet water pipe 9 and the outlet water pipe 13 to complete the circulation. The inner bottom of the packing column 121 is provided with a filter sand core to prevent the adsorbent from being flushed out. The outer side of the packing column 121 near the top is provided with a protruding flange 123. When the packing column 121 is inserted into the insertion hole 19, the support plate 18 supports the flange 123.

[0029] Although the present invention has been disclosed above with reference to preferred embodiments, these are not intended to limit the present invention. Anyone skilled in the art can make various changes or modifications without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be determined by the scope of protection of the claims of this application.

Claims

1. A heavy metal ion adsorbent performance testing device characterized by, The utility model provides a wastewater treatment device, including box, on line heavy metal detector and pH sensor are installed on the box, the top of box is equipped with wastewater tank, acid tank and alkali tank, the inside of box is equipped with stirring mechanism, the top of box is also equipped with circulating pump, the water inlet of circulating pump connects water inlet pipe, and water inlet pipe stretches into the inside of box, and the water outlet of circulating pump connects water inlet branch pipe, and water inlet branch pipe is fixed in the top of mounting frame, a plurality of first connecting mouths are equipped on water inlet branch pipe, and first connecting mouth passes through detachable connecting pipe and connects the top water inlet of adsorption column, and the bottom water outlet of adsorption column is connected through detachable connecting pipe and is connected second connecting mouth on water outlet branch pipe, and water outlet branch pipe connects the lower side of box, and adsorption column is inserted in mobile frame, and mobile frame is connected the guide rail on mounting frame and slides, and mobile frame can be drawn out from the side of mounting frame away from the box.

2. The device for testing the performance of a heavy metal ion adsorbent according to claim 1, wherein The water outlet of the water outlet branch pipe and the water inlet of the water inlet pipe are oppositely arranged on both sides of the inside of the box.

3. The device for testing the performance of a heavy metal ion adsorbent according to claim 1, wherein The water outlets of the wastewater tank, the acid tank and the alkali tank are each provided with a metering valve.

4. The device for testing the performance of a heavy metal ion adsorbent according to claim 1, wherein The stirring mechanism comprises a motor and a stirring paddle, and the stirring paddle is fixed to the movable end of the motor.

5. The device for testing the performance of a heavy metal ion adsorbent according to claim 1, wherein The inside bottom of the wastewater tank is provided with a heating coil.

6. The device for testing the performance of a heavy metal ion adsorbent according to any one of claims 1 to 5, characterized in that, The top of the mobile frame is provided with a support plate, and a plurality of insertion holes are arranged in a rectangular array on the support plate. The adsorption column is inserted into the insertion hole and supported by the support plate. The mounting frame is provided with a fixed rod at the front and rear thereof, and the fixed rod is close to the support plate. A quick clamp is mounted on the fixed rod.

7. The device for testing the performance of a heavy metal ion adsorbent according to claim 6, wherein The adsorption column comprises a filler column body and a top cover. The top cover is threadedly connected to the top of the filler column body. The top cover is provided with a first connector. The bottom of the filler column body is provided with a second connector. The first connector and the second connector can be connected to the connecting pipe. The inside bottom of the filler column body is provided with a filter sand core. The outside of the filler column body close to the top is provided with a protruding flange.

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