CN115286329A - Self-cleaning brick with purification function and preparation method and application thereof - Google Patents
Self-cleaning brick with purification function and preparation method and application thereof Download PDFInfo
- Publication number
- CN115286329A CN115286329A CN202210976688.1A CN202210976688A CN115286329A CN 115286329 A CN115286329 A CN 115286329A CN 202210976688 A CN202210976688 A CN 202210976688A CN 115286329 A CN115286329 A CN 115286329A
- Authority
- CN
- China
- Prior art keywords
- self
- cleaning
- portions
- parts
- water
- 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
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C04B28/06—Aluminous cements
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
- E02B3/04—Structures or apparatus for, or methods of, protecting banks, coasts, or harbours
- E02B3/12—Revetment of banks, dams, watercourses, or the like, e.g. the sea-floor
- E02B3/14—Preformed blocks or slabs for forming essentially continuous surfaces; Arrangements thereof
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00241—Physical properties of the materials not provided for elsewhere in C04B2111/00
- C04B2111/00284—Materials permeable to liquids
-
- 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
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Ocean & Marine Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Hydrology & Water Resources (AREA)
- Materials Engineering (AREA)
- Water Treatment By Sorption (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Abstract
The invention discloses a self-cleaning brick with a purification function, and a preparation method and application thereof, wherein the self-cleaning brick is prepared from the following raw materials in parts by weight: 10 to 20 portions of cementing material, 60 to 80 portions of furnace slag, 0.15 to 0.25 portion of alkaline water-permeable concrete special binder, 0.15 to 0.25 portion of alkali activator, 0.15 to 0.25 portion of fly ash, 10 to 20 portions of zeolite powder, 1.5 to 2.5 portions of reinforcing agent, 50 to 70 portions of aluminum sludge, 1.5 to 2.5 portions of purifying agent and 10 to 20 portions of water; the self-cleaning brick has super-strong adsorption performance, can adsorb pollutants such as phosphorus, ammonia nitrogen, organic substances, heavy metal ions and the like in sewage, has a purification effect on water quality, and particularly achieves the removal rate of 16.6 percent of total nitrogen and 25.3 percent of total phosphorus.
Description
Technical Field
The invention relates to the technical field of sewage treatment, in particular to a self-cleaning brick with a purification function and a preparation method and application thereof.
Background
The prior common concrete self-purification brick technology is favorable for protecting surface runoff water and soil from being lost, but is not favorable for energy communication between water in a farmland ditch and a revetment, and the corresponding water purification effect can not be carried out through the revetment, so that the self-purification capacity of the water is reduced; in addition, the mixing ratio of cement is usually required to be not less than 20% for preparing building materials such as traditional concrete self-cleaning bricks, and the production of cement is a process with high energy consumption and high carbon emission, which has great influence on the environment, so that the exploration and the attempt on cement substitute materials are urgent.
The ecological channel purification technology used for farmland standardization construction is a pollutant in-situ interception technology, which is mainly divided into two types, one type is ecological grading interception and resistance control, the mode is to plant floating plants or arrange some purification devices such as biological purification boxes and the like in the existing farmland drainage channel, and the concentration of pollutants is intercepted and reduced by utilizing the physical and chemical reaction generated when water flows pass through the purification devices. However, the arrangement route is long and dispersed, so that the maintenance is difficult, and sometimes, due to untimely maintenance, pollutants are released into the water again after the plants are rotten, and secondary pollution is caused. The other method is to arrange a centralized ecological purification tank in a farmland drainage ditch, and the mode is simple and convenient to maintain and easy to implement. However, in practice, the volume of the purification pool directly determines the purification effect, and it is not suitable to occupy a large amount of cultivated land to construct a large-capacity purification pool.
In the agricultural production process, the nitrogen and phosphorus contents of the farmland tail water are high due to large application amounts of nitrogen and phosphorus fertilizers. Through farmland irrigation and erosion of rainfall runoff, pollutants such as nitrogen, phosphorus and the like bring eutrophication hidden danger to subsequent receiving water bodies. The sewage treatment technology with limited operation cost budget, flexible arrangement, convenient maintenance and the like for agricultural wastewater treatment is a great bottleneck. Therefore, the prior art has the defect of bringing eutrophication hidden danger to the subsequent receiving water body in the operation process.
In view of the above, the present invention is particularly proposed.
Disclosure of Invention
The invention aims to provide a self-cleaning brick with a purification function and a preparation method and application thereof.
In order to achieve the above purpose of the present invention, the following technical solutions are adopted:
the invention provides a self-cleaning brick with a purification function, which is prepared from the following raw materials in parts by weight:
10 to 20 portions of cementing material, 60 to 80 portions of furnace slag, 0.15 to 0.25 portion of special binder for alkaline permeable concrete, 0.15 to 0.25 portion of alkali activator, 0.15 to 0.25 portion of fly ash, 10 to 20 portions of zeolite powder, 1.5 to 2.5 portions of reinforcing agent, 50 to 70 portions of aluminum sludge, 1.5 to 2.5 portions of purifying agent and 10 to 20 portions of water.
In the invention, the aluminum sludge of the water works is not only a pollutant, but also a resource. The aluminum sludge contains amorphous aluminum compounds and has a developed micropore structure and a large specific surface area, so that the aluminum sludge has a high adsorption rate and a large number of adsorption sites, and has strong affinity adsorption capacity for phosphorus and other anions in water.
Slag is waste residue discharged from household garbage incineration treatment, power plants and the like, has a developed microporous structure and is high in porosity; the large specific surface area can provide good space for the growth of microorganisms; the surface of the adsorbent is rich in various functional groups, so that the adsorbent has high adsorption rate, many adsorption sites and strong affinity adsorption capacity, the adsorption capacity reaches 107.53mg/g, and the adsorbent can effectively adsorb heavy metals and organic pollutants. The slag contains a large amount of aluminosilicate, so that the slag has remarkable advantages in phosphorus removal, the smaller the particle size is, the better the phosphorus removal effect is, on one hand, the slag with the small particle size has larger specific surface area, so that the adsorption active centers of inorganic minerals in the particles are increased, and the surface adsorption effect on phosphorus is enhanced; on the other hand, the slag with small particle size contains more heavy metals, and the leaching is increased, and the heavy metals can react with phosphate in the wastewater to generate precipitation, so that phosphorus in the wastewater is removed.
The slag, the aluminum sludge, the cementing material and the fly ash in the raw materials for preparing the self-cleaning brick synergistically create a neutral hydration environment to generate gel substances such as hydrated calcium silicate and the like, so that a structure with higher porosity is formed. When water is evaporated by hydration and other causes, pores are left in the internal cement hydrate, i.e., the pores are spaces remaining after evaporation of water existing between cement hydration particles. The part belongs to capillary pores, is in a distributed and communicated net shape, can generate capillary action, and has the pore diameter varying between 16 nm and 2.5 nm; the other part is the gel which has chemical and physical actions with water and about 50 percent of C-S-H is generated. A large number of micro-capillary pores which cannot be distinguished by an electron microscope have the pore diameter of about 2.5-0.5 nm or even less than 0.5nm, and 1/4 of the volume of C-S-H is pores. The C-S-H is a determining factor for determining the property of concrete (cement), and the porosity is calculated by the formula of T.C.powers.
The self-cleaning brick provided by the invention is prepared from waste aluminum sludge, slag and fly ash, realizes the utilization of waste resources, and can provide a good space for the growth of microorganisms and effectively adsorb phosphorus, heavy metals and organic pollutants by using the self-cleaning brick which is prepared from the main materials of the slag which has a high specific surface area and a high film forming property, contains a carbon source and has a strong adsorption property and the aluminum sludge which has a high specific surface area and a strong adsorption property to phosphorus. The self-cleaning brick achieves the water quality purification effect through the microorganisms fixedly planted on the surface and the super-strong adsorption performance on the premise of no power, no management and convenient maintenance, and particularly achieves the removal rate of 16.6 percent of total nitrogen and 25.3 percent of total phosphorus, so that the water quality of a water outlet reaches the standard of five types of water, and the problem of secondary pollution of a river channel is solved.
Preferably, the special binder for the alkaline pervious concrete is at least one selected from sodium chloride, quartz, iron oxide, dolomite, tricalcium silicate, magnesium oxide and aluminum oxide;
the cementing material is a silicon-aluminum-based cementing material and/or cement.
Preferably, the enhancer is selected from at least one of hydroxypropyl methylcellulose, brucite fiber, hydroxypropyl starch ether and hydrated magnesium silicate.
Preferably, the purifying agent is a mesoporous composite molecular sieve. The adsorption performance can be improved by adding the purifying agent, and the water quality can be better purified.
Preferably, the raw materials also comprise 2-3 parts of compound microbial agents, and each part of the compound microbial agents comprises 1-3 parts of denitrifying bacteria, 3-5 parts of phosphorus removing bacteria and 15-20 parts of KS50 compound microbial agents.
The types of the denitrifying bacteria and the dephosphorizing bacteria are not strictly limited, and the denitrifying bacteria and the dephosphorizing bacteria which are conventionally used for water treatment in the field can be adopted by the technical personnel in the field; for example, they may be denitrifying bacteria; the phosphorus-removing bacteria can be SCA-P phosphorus-removing bacteria.
Preferably, the porosity of the slag is 50% to 60%;
the water content of the sludge is 75-80%.
The second aspect of the invention provides a preparation method of the self-cleaning brick with the cleaning function, which comprises the following steps:
(a) Mixing and uniformly stirring the aluminum sludge, the alkali activator and the purifying agent to obtain a mixture 1;
(b) Adding slag, a cementing material, a reinforcing agent and fly ash into the mixture 1, and uniformly stirring to obtain a mixture 2;
(c) Adding zeolite powder, an alkaline water-permeable concrete special binder and water into the mixture 2 and uniformly stirring to obtain mixed slurry;
(d) And carrying out extrusion forming and maintenance on the mixed slurry to obtain the self-cleaning brick with the purification function.
Preferably, the preparation method further comprises a step of adding the complex microbial agent, wherein the step of adding the complex microbial agent comprises the following steps: preparing a compound microbial agent into a compound microbial solution, and spraying the compound microbial solution on the surface after the maintenance in the step (d) is finished; or mixing the compound microbial agent with the water in the step (c) and then adding the mixture into the mixture 2.
The third aspect of the invention provides an application of the self-cleaning brick with the cleaning function in cleaning sewage.
The invention provides a wastewater purification method, wherein the self-purification bricks with purification function are laid at the bottom of the river channel and are used for purifying the wastewater flowing through the river channel.
Preferably, the sewage is domestic sewage, industrial sewage, aquaculture sewage or agricultural sewage.
Compared with the prior art, the invention has the beneficial effects that at least:
the self-cleaning brick provided by the invention is prepared from waste aluminum sludge, slag and fly ash, realizes the utilization of waste resources, and can provide a good space for the growth of microorganisms and effectively adsorb phosphorus, heavy metals and organic pollutants by using the self-cleaning brick which is prepared from the main materials of the slag which has a high specific surface area and a high film forming property, contains a carbon source and has a strong adsorption property and the aluminum sludge which has a high specific surface area and a strong adsorption property to phosphorus. The self-cleaning brick realizes the purification effect on water quality through the super-strong adsorption performance and the action of microorganisms fixedly planted on the surface on the premise of no power, no management and convenient maintenance, and particularly achieves the removal rate of 16.6 percent of total nitrogen and 25.3 percent of total phosphorus, so that the water quality of a water outlet reaches the standard of five types of water, and the problem of secondary pollution of a river channel is solved.
Detailed Description
The following describes embodiments of the present invention in detail with reference to the following embodiments. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.
It is to be noted that, unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the present invention belongs.
The following examples used the following starting materials:
slag: the porosity was 54%; the contents of main components are as follows: siO 2 2 43.2％、Al 2 O 3 33.6％、Fe 2 O 3 12.8 percent of CaO and 2.5 percent of CaO; is derived from the bottom slag of the household garbage incineration;
aluminum sludge: the water content is 79%; sludge from waterworks;
fly ash: derived from fly ash from coal fired power plants;
cement: is generally commercially available.
Example 1
1. Self-cleaning brick with purification function
The self-cleaning brick with the purification function is prepared from the following raw materials in parts by weight:
10 parts of a silicon-aluminum-based cementing material, 60 parts of furnace slag, 0.25 part of an alkaline water-permeable concrete special binder, 0.25 part of an alkali activator, 0.15 part of fly ash, 10 parts of zeolite powder, 2.5 parts of a reinforcing agent, 50 parts of aluminum sludge, 1.5 parts of a mesoporous composite molecular sieve and 10 parts of water;
wherein, the special binder for the alkaline pervious concrete is a mixture of ferric oxide, tricalcium silicate and the like.
The reinforcing agent is hydroxypropyl methylcellulose.
2. Preparation method
The preparation method of the self-cleaning brick with the purification function comprises the following steps:
(a) Mixing and uniformly stirring aluminum sludge, an alkali activator and a mesoporous composite molecular sieve to obtain a mixture 1;
(b) Adding the slag, the silicon-aluminum-based cementing material, the reinforcing agent and the fly ash into the mixture 1, and uniformly stirring to obtain a mixture 2;
(c) Adding zeolite powder, an alkaline water-permeable concrete special binder and water into the mixture 2 and uniformly stirring to obtain mixed slurry;
(d) And carrying out extrusion forming and maintenance on the mixed slurry to obtain the self-cleaning brick with the purification function.
Example 2
1. Self-cleaning brick with purification function
The self-cleaning brick with the purification function is prepared from the following raw materials in parts by weight:
20 parts of cement, 80 parts of furnace slag, 0.15 part of alkaline permeable concrete special binder, 0.15 part of alkaline activator, 0.25 part of fly ash, 20 parts of zeolite powder, 1.5 parts of reinforcing agent, 70 parts of aluminum sludge, 2.5 parts of mesoporous composite molecular sieve, 20 parts of water and 2 parts of composite microbial agent,
wherein, the special binder for the alkaline permeable concrete is a mixture of quartz, ferric oxide and magnesium oxide with equal mass.
The reinforcing agent is brucite fiber;
each part of the composite microbial agent comprises 1 part of denitrifying bacteria, 5 parts of phosphorus removing bacteria and 15 parts of KS50 composite microbial agent.
2. Preparation method
The preparation method of the self-cleaning brick with the purification function comprises the following steps:
(a) Mixing and uniformly stirring aluminum sludge, an alkali activator and a mesoporous composite molecular sieve to obtain a mixture 1;
(b) Adding slag, cement, a reinforcing agent and fly ash into the mixture 1, and uniformly stirring to obtain a mixture 2;
(c) Firstly, mixing the compound microbial agent with water to obtain a microbial solution, then adding zeolite powder, an alkaline permeable concrete special binder and the microbial solution into the mixture 2, and uniformly stirring to obtain mixed slurry;
(d) And carrying out extrusion forming and maintenance on the mixed slurry to obtain the self-cleaning brick with the purification function.
Example 3
1. Self-cleaning brick with purification function
The self-cleaning brick with the purification function is prepared from the following raw materials in parts by weight:
16 parts of cement, 65 parts of furnace slag, 0.25 part of an alkaline permeable concrete special binder, 0.2 part of an alkali activator, 0.25 part of fly ash, 12 parts of zeolite powder, 2 parts of a reinforcing agent, 55 parts of aluminum sludge, 2 parts of a mesoporous composite molecular sieve, 17 parts of water and 2 parts of a composite microbial agent;
wherein, the special binder for the alkaline pervious concrete is a mixture of magnesium oxide and aluminum oxide with equal mass.
The reinforcing agent is hydroxypropyl starch ether;
each part of the composite microbial agent comprises 1 part of denitrifying bacteria, 5 parts of phosphorus removing bacteria and 15 parts of KS50 composite microbial agent.
2. Preparation method
The preparation method of the self-cleaning brick with the purification function comprises the following steps:
(a) Mixing and uniformly stirring aluminum sludge, an alkali activator and a mesoporous composite molecular sieve to obtain a mixture 1;
(b) Adding slag, cement, a reinforcing agent and fly ash into the mixture 1, and uniformly stirring to obtain a mixture 2;
(c) Adding zeolite powder, an alkaline water-permeable concrete special binder and water into the mixture 2 and uniformly stirring to obtain mixed slurry;
(d) And (3) performing extrusion forming and maintenance on the mixed slurry, preparing a compound microbial agent into a compound microbial solution, and spraying the compound microbial solution on the surface after the maintenance is finished to obtain the self-cleaning brick with the purification function.
Example 4
1. Self-cleaning brick with purification function
The self-cleaning brick with the purification function is prepared from the following raw materials in parts by weight:
15 parts of cement, 70 parts of furnace slag, 0.2 part of an alkaline permeable concrete special binder, 0.2 part of an alkali activator, 0.2 part of fly ash, 15 parts of zeolite powder, 2 parts of a reinforcing agent, 60 parts of aluminum sludge, 2 parts of a mesoporous composite molecular sieve, 15 parts of water and 3 parts of a composite microbial agent;
wherein, the special binder for the alkaline pervious concrete is a mixture of magnesium oxide and aluminum oxide with equal mass.
The reinforcing agent is hydroxypropyl starch ether;
each part of the composite microbial agent comprises 1 part of denitrifying bacteria, 2 parts of phosphorus removing bacteria and 9 parts of KS50 composite microbial agent.
2. Preparation method
The preparation method of the self-cleaning brick with the purification function comprises the following steps:
(a) Mixing and uniformly stirring aluminum sludge, an alkali activator and a mesoporous composite molecular sieve to obtain a mixture 1;
(b) Adding slag, cement, a reinforcing agent and fly ash into the mixture 1, and uniformly stirring to obtain a mixture 2;
(c) Adding zeolite powder, an alkaline water-permeable concrete special binder and water into the mixture 2 and uniformly stirring to obtain mixed slurry;
(d) And (3) performing extrusion forming and maintenance on the mixed slurry, preparing a compound microbial agent into a compound microbial solution, and spraying the compound microbial solution on the surface after the maintenance is finished to obtain the self-cleaning brick with the purification function.
Comparative example 1
1. Self-cleaning brick with purification function
The self-cleaning brick with the purification function is prepared from the following raw materials in parts by weight:
15 parts of cement, 60 parts of furnace slag, 0.2 part of alkaline permeable concrete special binder, 0.2 part of alkaline activator, 0.2 part of fly ash, 15 parts of zeolite powder, 2 parts of reinforcing agent, 80 parts of aluminum sludge, 2 parts of mesoporous composite molecular sieve, 15 parts of water and 3 parts of composite microbial agent;
wherein, the special binder for the alkaline pervious concrete is a mixture of magnesium oxide and aluminum oxide with equal mass.
The reinforcing agent is hydroxypropyl starch ether;
each part of the composite microbial agent comprises 1 part of denitrifying bacteria, 2 parts of phosphorus removing bacteria and 9 parts of KS50 composite microbial agent.
2. Preparation method
The preparation method of the self-cleaning brick with the purification function comprises the following steps:
(a) Mixing and uniformly stirring aluminum sludge, an alkali activator and a mesoporous composite molecular sieve to obtain a mixture 1;
(b) Adding slag, cement, a reinforcing agent and fly ash into the mixture 1, and uniformly stirring to obtain a mixture 2;
(c) Adding zeolite powder, an alkaline water-permeable concrete special binder and water into the mixture 2 and uniformly stirring to obtain mixed slurry;
(d) And (3) performing extrusion forming and maintenance on the mixed slurry, preparing a compound microbial agent into a compound microbial solution, and spraying the compound microbial solution on the surface after the maintenance is finished to obtain the self-cleaning brick with the purification function.
Comparative example 2
1. Self-cleaning brick with purification function
The self-cleaning brick with the purification function is prepared from the following raw materials in parts by weight:
15 parts of cement, 87 parts of furnace slag, 0.2 part of an alkaline permeable concrete special binder, 0.2 part of an alkali activator, 0.2 part of fly ash, 2 parts of a reinforcing agent, 60 parts of aluminum sludge, 15 parts of water and 3 parts of a composite microbial agent;
wherein, the special binder for the alkaline pervious concrete is a mixture of magnesium oxide and aluminum oxide in equal mass.
The reinforcing agent is hydroxypropyl starch ether;
each part of the composite microbial agent comprises 1 part of denitrifying bacteria, 2 parts of phosphorus removing bacteria and 9 parts of KS50 composite microbial agent.
2. Preparation method
The preparation method of the self-cleaning brick with the purification function comprises the following steps:
(a) Mixing and uniformly stirring the aluminum sludge and the alkali activator to obtain a mixture 1;
(b) Adding slag, cement, a reinforcing agent and fly ash into the mixture 1, and uniformly stirring to obtain a mixture 2;
(c) Adding the special binder for the alkaline pervious concrete and water into the mixture 2 and uniformly stirring to obtain mixed slurry;
(d) And (3) performing extrusion forming and maintenance on the mixed slurry, preparing a compound microbial agent into a compound microbial solution, and spraying the compound microbial solution on the surface after the maintenance is finished to obtain the self-cleaning brick with the purification function.
Examples of the experiments
Taking certain farmland runoff water, wherein the related indexes are total nitrogen =3.8mg/L and total phosphorus =8mg/L.
The self-cleaning bricks (with the size of 10cm multiplied by 20cm multiplied by 5 cm) prepared in examples 3-4 and comparative examples 1-2 are respectively obtained;
16 self-cleaning bricks of examples 3-4 and comparative examples 1-2 are paved at the bottom of an experimental water vat (0.5 m multiplied by 1m is 0.5 m); then, 0.15m was poured into the water jar 3 The farmland runoff water; standing for 20 days under the condition of room temperature, keeping the liquid level unchanged by supplementing sterilized water, sampling to detect the water quality, and calculating the removal rate, wherein the calculation result is shown in table 1:
TABLE 1
| Group of | Total nitrogen removal (%) | Total phosphorus removal (%) |
| Example 3 | 14.9 | 22.7 |
| Example 4 | 16.6 | 25.3 |
| Comparative example 1 | 10.8 | 13.2 |
| Comparative example 2 | 9.7 | 22.1 |
As can be seen from Table 1:
the self-cleaning brick that this application technical scheme prepared and obtained can effectively get rid of total nitrogen and total phosphorus in the sewage, compares the comparative example, and the effect is better to total nitrogen and total phosphorus removal in the sewage to the self-cleaning brick that this application embodiment prepared and obtained.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention, and they should be construed as being included in the following claims and description.
Claims (10)
1. The self-cleaning brick with the purification function is characterized by being prepared from the following raw materials in parts by weight:
10 to 20 portions of cementing material, 60 to 80 portions of furnace slag, 0.15 to 0.25 portion of special binder for alkaline permeable concrete, 0.15 to 0.25 portion of alkali activator, 0.15 to 0.25 portion of fly ash, 10 to 20 portions of zeolite powder, 1.5 to 2.5 portions of reinforcing agent, 50 to 70 portions of aluminum sludge, 1.5 to 2.5 portions of purifying agent and 10 to 20 portions of water.
2. The self-cleaning brick with the purification function according to claim 1, wherein the binder special for the alkaline water-permeable concrete is at least one selected from sodium chloride, quartz, iron oxide, dolomite, tricalcium silicate, magnesium oxide and aluminum oxide.
3. The self-cleaning brick with a purifying function according to claim 1, wherein the reinforcing agent is at least one selected from the group consisting of hydroxypropyl methylcellulose, brucite fiber, hydroxypropyl starch ether and hydrous magnesium silicate.
4. The self-cleaning brick with the purification function according to claim 1, wherein the cementing material is a silica-alumina-based cementing material and/or cement.
5. The self-cleaning brick with the purification function according to claim 1, wherein the raw material further comprises 2-3 parts of a compound microbial agent, and each part of the compound microbial agent comprises 1-3 parts of denitrifying bacteria, 3-5 parts of phosphorus removing bacteria and 15-20 parts of KS50 compound microbial agent.
6. The self-cleaning brick with the purification function according to claim 1 or 2, wherein the porosity of the slag is 50-60%;
the water content of the sludge is 75-80%.
7. The method for preparing a self-cleaning brick with a cleaning function according to any one of claims 1 to 6, comprising the steps of:
(a) Mixing and uniformly stirring aluminum sludge, an alkali activator and a purifying agent to obtain a mixture 1;
(b) Adding slag, a cementing material, a reinforcing agent and fly ash into the mixture 1, and uniformly stirring to obtain a mixture 2;
(c) Adding zeolite powder, an alkaline water-permeable concrete special binder and water into the mixture 2 and uniformly stirring to obtain mixed slurry;
(d) And carrying out extrusion forming and maintenance on the mixed slurry to obtain the self-cleaning brick with the purification function.
8. The method according to claim 7, further comprising a step of adding a complex microbial agent, wherein the step of adding the complex microbial agent comprises: preparing a compound microbial agent into a compound microbial solution, and spraying the compound microbial solution on the surface after the maintenance in the step (d) is finished; or mixing the compound microbial agent with the water in the step (c) and then adding the mixture into the mixture 2.
9. Use of the self-cleaning brick having a cleaning function according to any one of claims 1 to 6 for cleaning sewage.
10. A method for purifying wastewater, characterized in that the self-cleaning bricks with purification function according to any one of claims 1 to 6 are laid on the bottom of a river channel to purify wastewater flowing through the river channel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210976688.1A CN115286329B (en) | 2022-08-15 | 2022-08-15 | Self-cleaning brick with purification function and preparation method and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210976688.1A CN115286329B (en) | 2022-08-15 | 2022-08-15 | Self-cleaning brick with purification function and preparation method and application thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115286329A true CN115286329A (en) | 2022-11-04 |
| CN115286329B CN115286329B (en) | 2023-06-23 |
Family
ID=83829772
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210976688.1A Active CN115286329B (en) | 2022-08-15 | 2022-08-15 | Self-cleaning brick with purification function and preparation method and application thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115286329B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010103819A1 (en) * | 2009-03-10 | 2010-09-16 | Izumo Yumin | Filter medium using granular activated coal for purifying eutrophic sewage caused by nitrogen or phosphorus, water purification plant utilizing same, method of treating sludge with fine activated-coal powder as ion-exchange material, and various recycle materials produced by the method |
| CN101880147A (en) * | 2010-05-01 | 2010-11-10 | 马鞍山市黄河水处理工程有限公司 | Steel slag eco-concrete, steel slag eco-concrete product and preparation method thereof |
| CN104478090A (en) * | 2014-11-17 | 2015-04-01 | 天津市环境保护科学研究院 | Multi-channel efficient biological filler and preparation method and application thereof |
| CN108414389A (en) * | 2018-02-02 | 2018-08-17 | 扬州大学 | Ecological permeable concrete detergent power analysis method |
| CN112321255A (en) * | 2020-11-06 | 2021-02-05 | 江西省建筑材料工业科学研究设计院 | Pervious concrete with biological water purification function and preparation method thereof |
-
2022
- 2022-08-15 CN CN202210976688.1A patent/CN115286329B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010103819A1 (en) * | 2009-03-10 | 2010-09-16 | Izumo Yumin | Filter medium using granular activated coal for purifying eutrophic sewage caused by nitrogen or phosphorus, water purification plant utilizing same, method of treating sludge with fine activated-coal powder as ion-exchange material, and various recycle materials produced by the method |
| CN101880147A (en) * | 2010-05-01 | 2010-11-10 | 马鞍山市黄河水处理工程有限公司 | Steel slag eco-concrete, steel slag eco-concrete product and preparation method thereof |
| CN104478090A (en) * | 2014-11-17 | 2015-04-01 | 天津市环境保护科学研究院 | Multi-channel efficient biological filler and preparation method and application thereof |
| CN108414389A (en) * | 2018-02-02 | 2018-08-17 | 扬州大学 | Ecological permeable concrete detergent power analysis method |
| CN112321255A (en) * | 2020-11-06 | 2021-02-05 | 江西省建筑材料工业科学研究设计院 | Pervious concrete with biological water purification function and preparation method thereof |
Non-Patent Citations (2)
| Title |
|---|
| 仇付国等: "给水厂污泥对有机磷的吸附特性分析" * |
| 阳春等: "几种土壤改良材料磷氨氮吸附和硝化作用特性的研究" * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115286329B (en) | 2023-06-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Wang et al. | Comprehensive evaluation of substrate materials for contaminants removal in constructed wetlands | |
| Ahmad et al. | Sustainable management of water treatment sludge through 3 ‘R’concept | |
| CN101935195B (en) | Porous phosphorus removing ceramic granules with function of slowly releasing alkali and preparation method thereof | |
| CN102151548B (en) | Adsorption material for treating phosphorus wastewater and use thereof | |
| KR101218767B1 (en) | Vegetation Wetland System for Treatment of Urban Non-Contaminant Pollutants by Aerobic and Anaerobic Decomposition | |
| CN103172168A (en) | Biological aerated filter filler preparation method capable of simultaneously removing phosphorus and nitrogen, and application thereof | |
| CN103466810B (en) | Method for polluted river comprehensive treatment | |
| Jing et al. | Practice of integrated system of biofilter and constructed wetland in highly polluted surface water treatment | |
| CN111233165A (en) | Compound dephosphorization filter material | |
| KR101344922B1 (en) | Moss brick for purifying water and method for preparing the same | |
| CN112321255A (en) | Pervious concrete with biological water purification function and preparation method thereof | |
| CN101544421B (en) | Method for treating coking wastewater | |
| CN111517470A (en) | Anti-clogging efficient nitrogen and phosphorus removal constructed wetland substrate, constructed wetland and method | |
| CN102910781B (en) | Compound treatment system for nitrogen and phosphorus removal of municipal wastewater and treatment method of system | |
| Sharma et al. | Wastewater treatment and sludge management strategies for environmental sustainability | |
| CN111203173A (en) | Phosphorus removal material based on collophanite tailings and preparation and application methods thereof | |
| KR100944988B1 (en) | Km-rf system | |
| Abou-Elela et al. | Utilization of autoclaved aerated concrete solid waste as a bio-carrier in immobilized bioreactor for municipal wastewater treatment | |
| AU2011331064A1 (en) | Method for the manufacture of porous pellets and wastewater treatment process using said pellets | |
| Bao et al. | Production of zeolite composite filters using waste paper pulp as slow release carbon source and performance investigation in a biological aerated filter | |
| CN111072139B (en) | Preparation method of sulfur autotrophic denitrification biological brick and biological brick prepared by same | |
| CN210737723U (en) | Rainwater purification and reuse biological retention system | |
| CN115286329B (en) | Self-cleaning brick with purification function and preparation method and application thereof | |
| JP3379924B2 (en) | Adsorbent | |
| CN110590476A (en) | Sponge urban green land soil penetrant and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |