A recyclable bismuth-doped chlorine scavenger block
By designing recyclable bismuth-doped dechlorinating agent blocks, and utilizing through-hole and internal pore structures to increase the contact area, combined with the chemical activity of bismuth, the problems of resource waste and high cost of existing dechlorinating agent materials are solved, achieving efficient and stable dechlorination effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU ZHONGWU ENVIRONMENTAL PROTECTION IND DEV CO LTD
- Filing Date
- 2025-06-12
- Publication Date
- 2026-06-26
AI Technical Summary
Existing dechlorination agents are mostly for single use, resulting in significant resource waste and high costs. They may also cause secondary pollution and are difficult to effectively remove chlorine ions from water.
A recyclable bismuth-doped dechlorinating agent block was designed. The liquid contact area is increased through the through-hole and internal hole structure. Combined with the chemical activity of bismuth, a rapid reaction is achieved. The block is stably combined through the slot and rod structure to form a stable dechlorination unit.
It improves dechlorination efficiency, reduces costs, minimizes resource waste and environmental pollution, ensures the stability and continuity of dechlorination performance, and adapts to diverse application scenarios.
Smart Images
Figure CN224411516U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of dechlorination agent block technology, and more specifically, to a recyclable bismuth-doped dechlorination agent block. Background Technology
[0002] Wastewater treatment is often a difficult problem to solve, whether in industrial production or in people's daily lives. Chloride ions are a common anion in wastewater. High concentrations of chlorine-containing wastewater can cause irreversible problems such as pipe corrosion, soil salinization, and yellowing of plants, and can also harm human health and the ecological environment. There are many existing methods for removing chlorine ions from wastewater, but many of them have problems such as high cost, low efficiency, and inability to be recycled.
[0003] Currently, most commercially available dechlorinating agents are single-use materials, such as activated carbon dechlorinating agents and sulfite dechlorinating agents. Although activated carbon dechlorinating agents have a certain adsorption capacity, this capacity is limited. Once saturated, they can no longer remove chlorine and are difficult to regenerate. After use, they can only be treated as solid waste, which not only wastes resources but also increases the environmental burden. Sulfite dechlorinating agents remove chlorine through chemical reactions; however, the reaction process produces new chemical substances that may cause secondary pollution to water bodies. At the same time, these dechlorinating agents cannot be recycled, and their use costs are high in large-scale water treatment. Therefore, a recyclable bismuth-doped dechlorinating agent block is proposed. Utility Model Content
[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a recyclable bismuth-doped dechlorinating agent block to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a recyclable bismuth-doped dechlorination agent block, comprising a dechlorination agent block with through holes on its surface and an inner hole in its center. This pore structure design significantly increases the contact area between the dechlorination agent block and the chlorine-containing liquid, improving mass transfer efficiency. The chlorine-containing liquid enters the block through the through holes and diffuses through the inner hole, allowing the liquid to fully contact the dechlorination active components inside the block, thereby accelerating the dechlorination reaction and improving dechlorination efficiency. The dechlorination agent block has slots around its perimeter, a positioning hole at its bottom, and a positioning rod fixedly connected to its top. Multiple dechlorination agent blocks can be precisely positioned by the cooperation of the positioning rod and the positioning hole. A retaining ball is fixedly connected to the top of the positioning rod, and a retaining rod is located in the center of the slot. Through the cooperation of the slot and the retaining rod, multiple dechlorination agent blocks can be firmly combined to form a stable dechlorination unit. In practical use, different quantities of dechlorination agent blocks can be flexibly combined according to the amount of water to be treated and the dechlorination requirements to meet diverse application scenarios. At the same time, it ensures that the dechlorination agent blocks will not shift or scatter during use, thus ensuring the stability of the dechlorination effect.
[0006] Preferably, the dechlorination agent block is prepared by calcining a mixture of bismuth-doped precursor nitrate, acetone, and photosensitive resin. The bismuth-doped precursor nitrate is either bismuth nitrate or basic bismuth nitrate. The incorporation of bismuth endows the dechlorination agent block with special chemical activity, enabling it to undergo efficient chemical reactions or adsorption with chlorine-containing substances, thereby achieving chlorine removal. Acetone, as a solvent, can uniformly disperse the components and ensure the uniformity of the material mixture. During the calcination process, the photosensitive resin undergoes cross-linking and curing to form a stable skeleton structure, enhancing the mechanical strength and chemical stability of the dechlorination agent block, making it less prone to breakage and dissolution during use, and ensuring the recycling of the material.
[0007] Preferably, the inner hole is connected to the through hole, and the diameter of the inner hole is larger than the diameter of the through hole. The chlorine-containing liquid enters the interior of the block through the through hole and then diffuses through the inner hole, so that the liquid can fully contact the chlorine-removing active ingredients inside the block, thereby accelerating the chlorine removal reaction and improving the chlorine removal efficiency.
[0008] Preferably, the positioning rods correspond one-to-one with the positioning holes, and the positioning rods and positioning holes are adapted to each other, so that multiple dechlorinating agent blocks can be accurately positioned by the cooperation of the positioning rods and positioning holes.
[0009] Preferably, the cross-sectional shape of the slot is set to "T" shape, and the cross-sectional shape of the rod is set to "H" shape. The two sides of the rod are inserted into the middle of the two slots between two adjacent dechlorinating agent blocks. Through the cooperation of the slot and the rod, multiple dechlorinating agent blocks can be firmly combined together to form a stable dechlorination unit.
[0010] Preferably, the clamping rod has a through hole in the middle, and the material of the clamping rod is the same as that of the dechlorinating agent block.
[0011] The technical effects and advantages of this utility model are as follows:
[0012] 1. This utility model firstly increases the contact area between the dechlorinating agent block and the chlorine-containing liquid by setting through holes and inner holes, thereby improving the mass transfer efficiency. The chlorine-containing liquid enters the interior of the block through the through holes and then diffuses through the inner holes, allowing the liquid to fully contact the dechlorination active ingredients inside the block, thereby accelerating the dechlorination reaction and improving the dechlorination efficiency. Combined with the special chemical activity of bismuth-doped materials, it can quickly and efficiently remove chlorine from water. The dechlorinating agent block adopts a special material formula and structural design. After completing the dechlorination task, it can be regenerated by simple physical or chemical methods to restore its dechlorination performance, achieving multiple cycles of use, effectively reducing dechlorination costs, reducing resource waste and environmental pollution.
[0013] 2. This utility model also uses the cooperation of slots and rods to firmly combine multiple dechlorination blocks together to form a stable dechlorination unit. In actual use, different numbers of dechlorination blocks can be flexibly combined according to the amount of water to be treated and the dechlorination requirements to meet diverse application scenarios. At the same time, it ensures that the dechlorination blocks will not shift or scatter during use, ensuring the stability of the dechlorination effect. Multiple dechlorination blocks can be precisely positioned and combined through the cooperation of positioning rods and positioning holes to form a stable assembly. Under complex working conditions such as water flow impact, the structure can still remain stable and will not shift or scatter, ensuring the continuity and stability of the dechlorination process.
[0014] In summary, through the interaction of the above-mentioned multiple effects, the dechlorination reaction rate can be accelerated, the dechlorination efficiency can be improved, and its dechlorination performance can be restored through simple physical or chemical methods, enabling multiple cycles of use. This effectively reduces dechlorination costs, resource waste, and environmental pollution. At the same time, different quantities of dechlorination agent blocks can be flexibly combined to meet diverse application scenarios. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model.
[0016] Figure 2 This is a schematic diagram showing the disassembled structure of the dechlorination agent block and the clamp rod of this utility model.
[0017] Figure 3 This is a schematic diagram of the disassembled dechlorination agent block and the clamp rod of this utility model from another angle.
[0018] Figure 4This is a schematic diagram of the cross-sectional structure of the dechlorination agent block of this utility model.
[0019] The attached diagram is labeled as follows: 1. Dechlorinating agent block; 2. Through hole; 3. Inner hole; 4. Slot; 5. Positioning hole; 6. Positioning rod; 7. Clamping ball; 8. Clamping rod. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0021] As attached Figure 1-3 The diagram shows a recyclable bismuth-doped dechlorination agent block, comprising a dechlorination agent block 1. The surface of the dechlorination agent block 1 has through holes 2, and the center of the dechlorination agent block 1 has an inner hole 3. This pore structure design significantly increases the contact area between the dechlorination agent block 1 and the chlorine-containing liquid, improving mass transfer efficiency. The chlorine-containing liquid enters the block through the through holes 2 and then diffuses through the inner hole 3, allowing the liquid to fully contact the dechlorination active components inside the block, thereby accelerating the dechlorination reaction rate and improving dechlorination efficiency. The dechlorination agent block 1 has slots 4 around its perimeter and positioning holes 5 at its bottom. A positioning rod 6 is fixedly connected to the top of the unit. Multiple dechlorinating agent blocks 1 can be precisely positioned by the cooperation of the positioning rod 6 and the positioning hole 5. A retaining ball 7 is fixedly connected to the top of the positioning rod 6. A retaining rod 8 is provided in the middle of the retaining groove 4. Through the cooperation of the retaining groove 4 and the retaining rod 8, multiple dechlorinating agent blocks 1 can be firmly combined together to form a stable dechlorination unit. In actual use, different numbers of dechlorinating agent blocks 1 can be flexibly combined according to the water volume and dechlorination requirements to meet diverse application scenarios. At the same time, it ensures that the dechlorinating agent blocks will not shift or scatter during use, thus ensuring the stability of the dechlorination effect.
[0022] As attached Figure 1-4As shown, the dechlorination agent block 1 is made by calcining a mixture of bismuth-doped precursor nitrate, acetone, and photosensitive resin. The bismuth-doped precursor nitrate is either bismuth nitrate or basic bismuth nitrate. The inner hole 3 is connected to the through hole 2, and the diameter of the inner hole 3 is larger than the diameter of the through hole 2. The positioning rod 6 corresponds one-to-one with the positioning hole 5, and the positioning rod 6 is adapted to the positioning hole 5. The cross-sectional shape of the slot 4 is set as "T" shape, and the cross-sectional shape of the clamping rod 8 is set as "H" shape. The two sides of the clamping rod 8 are inserted into the middle of the two slots 4 between two adjacent dechlorination agent blocks 1. A through hole is opened in the middle of the clamping rod 8. The material of the clamping rod 8 is the same as that of the dechlorination agent block 1. The incorporation of bismuth gives the dechlorination agent block special chemical activity, enabling it to undergo efficient chemical reaction or adsorption with chlorine-containing substances. This process removes chlorine. Acetone, as a solvent, can evenly disperse the components, ensuring the uniformity of the material mixture. The photosensitive resin undergoes cross-linking and curing during calcination, forming a stable skeleton structure that enhances the mechanical strength and chemical stability of the dechlorinating agent block, making it less prone to breakage and dissolution during use, thus ensuring the material's recyclability. The chlorine-containing liquid enters the block through the through hole 2 and then diffuses through the inner hole 3, allowing the liquid to fully contact the dechlorination active ingredients inside the block, thereby accelerating the dechlorination reaction and improving dechlorination efficiency. Multiple dechlorinating agent blocks 1 can be precisely positioned by the cooperation of the positioning rod 6 and the positioning hole 5. Through the cooperation of the slot 4 and the locking rod 8, multiple dechlorinating agent blocks 1 can be firmly combined together to form a stable dechlorination unit.
[0023] It is worth noting that the production process of dechlorination agent block 1 is as follows: the bismuth-doped precursor nitrate is stirred evenly with photosensitive resin, mixed evenly under ultrasonic conditions, printed in an LCD photopolymerization 3D printer, and calcined to finally obtain the bismuth-doped dechlorination agent block. The bismuth-doped precursor nitrate is mixed evenly with acetone, and the mixture is poured into photosensitive resin and ultrasonically mixed for 10 minutes to obtain the final mixture. The ratio of nitrate, acetone and photosensitive resin is 1:10:100.
[0024] The working principle of this utility model is as follows: In use, according to the actual dechlorination requirements, an appropriate amount of dechlorination agent blocks 1 are combined. The positioning rod 6 of one dechlorination agent block is inserted into the positioning hole 5 of another block to achieve initial positioning. Then, the two sides of the clamping rod 8 are inserted into the middle of the clamping groove 4 between two adjacent dechlorination agent blocks 1, so that multiple blocks are firmly connected together to form a dechlorination unit.
[0025] The assembled dechlorination unit is installed into the dechlorination equipment, such as a filter or reaction tank. When chlorinated liquid passes through the dechlorination unit, it enters through the through-hole 2 of the dechlorination agent block 1, diffuses through the inner hole 3, and reacts or adsorbs with the bismuth-doped active component inside the block to generate a white precipitate, thus removing chlorine.
[0026] Take out the saturated dechlorination agent block 1, dry it, and then soak it in alkaline solution. The surface of the block turns yellow, and then solid-liquid separation is performed. Then, it is rinsed with dilute sulfuric acid and dried, and it can be recycled.
[0027] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A recyclable bismuth-doped dechlorinating agent block, comprising dechlorinating agent block (1), characterized in that: The surface of the dechlorinating agent block (1) is provided with a through hole (2), the middle part of the dechlorinating agent block (1) is provided with an inner hole (3), the periphery of the dechlorinating agent block (1) is provided with a slot (4), the bottom of the dechlorinating agent block (1) is provided with a positioning hole (5), the top of the dechlorinating agent block (1) is fixedly connected with a positioning rod (6), the top of the positioning rod (6) is fixedly connected with a ball (7), and the middle part of the slot (4) is provided with a locking rod (8).
2. The recyclable bismuth-doped dechlorinating agent block according to claim 1, characterized in that: The dechlorination agent block (1) is prepared by mixing and calcining a bismuth-doped precursor nitrate, acetone and photosensitive resin. The bismuth-doped precursor nitrate is either bismuth nitrate or basic bismuth nitrate.
3. The recyclable bismuth-doped dechlorinating agent block according to claim 1, characterized in that: The inner hole (3) is connected to the through hole (2), and the diameter of the inner hole (3) is larger than the diameter of the through hole (2).
4. The recyclable bismuth-doped dechlorinating agent block according to claim 1, characterized in that: The positioning rod (6) corresponds one-to-one with the positioning hole (5), and the positioning rod (6) is adapted to the positioning hole (5).
5. The recyclable bismuth-doped dechlorinating agent block according to claim 1, characterized in that: The cross-sectional shape of the slot (4) is set to "T" shape, and the cross-sectional shape of the rod (8) is set to "H" shape. The two sides of the rod (8) are inserted into the middle of the two slots (4) between two adjacent dechlorinating agent blocks (1).
6. The recyclable bismuth-doped dechlorinating agent block according to claim 1, characterized in that: The clamp (8) has a through hole in the middle, and the material of the clamp (8) is the same as that of the dechlorinating agent block (1).