CN110902803A - Oxidant for sewage treatment and preparation method thereof - Google Patents
Oxidant for sewage treatment and preparation method thereof Download PDFInfo
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- CN110902803A CN110902803A CN201911256867.2A CN201911256867A CN110902803A CN 110902803 A CN110902803 A CN 110902803A CN 201911256867 A CN201911256867 A CN 201911256867A CN 110902803 A CN110902803 A CN 110902803A
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- 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
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/0203—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising compounds of metals not provided for in B01J20/04
- B01J20/024—Compounds of Zn, Cd, Hg
- B01J20/0244—Compounds of Zn
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/04—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising compounds of alkali metals, alkaline earth metals or magnesium
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/06—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising oxides or hydroxides of metals not provided for in group B01J20/04
- B01J20/08—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising oxides or hydroxides of metals not provided for in group B01J20/04 comprising aluminium oxide or hydroxide; comprising bauxite
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/20—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising free carbon; comprising carbon obtained by carbonising processes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
- B01J20/28014—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their form
- B01J20/28016—Particle form
-
- 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
- C02F1/28—Treatment of water, waste water, or sewage by sorption
Abstract
The invention discloses an oxidant for sewage treatment and a preparation method thereof, and relates to the technical field of sewage treatment. The raw materials are as follows by weight: 5-7 parts of ferric nitrate crystal, 3-5 parts of magnesium nitrate crystal, 4-8 parts of zinc chloride, 30-40 parts of dry sludge and 50-80 parts of distilled water. The invention takes ferric nitrate crystal, magnesium nitrate crystal, zinc chloride, dry sludge and distilled water as raw materials, strictly controls the proportion of each component, prepares the sludge coal oxidizer, has certain adsorption and purification effects, and the finished product oxidizer is granular, is convenient to store, has simple preparation process and good oxidation effect, realizes the resource utilization of sludge, reduces the production cost of the oxidizer for sewage treatment, changes waste into valuable, and has environmental benefit and economic benefit.
Description
Technical Field
The invention belongs to the technical field of sewage treatment, and particularly relates to an oxidant for sewage treatment and a preparation method thereof.
Background
The problem of sewage treatment is increasingly paid high attention by society, and along with the process of urbanization and the development of industrial society, on one hand, the water consumption is continuously increased, and the water resource is increasingly in short supply, and on the other hand, the sewage discharge amount is increasingly increased, and the environmental pollution is increasingly serious. Sludge is solid or semisolid sediment substances generated in the sewage treatment process of a sewage treatment plant and residues obtained by floating foam floating on the sewage surface, along with the increase of the yield of the sludge, the stabilization, reduction, harmlessness and recycling of the sludge attract people to pay attention, the traditional sludge treatment modes such as landfill, incineration, composting and throwing into the sea are easy to generate secondary pollution to the environment, and the search for a new sludge treatment mode becomes a hotspot.
An oxidant is required to be used in sewage treatment, the traditional oxidant is powdery, the preparation process is complex, the cost is high, the oxidation effect is poor, and certain limitations are realized. The activated carbon has the advantages of large specific surface area, highly developed pore structure, strong adsorption capacity and the like, is widely applied to sewage treatment, and greatly increases the cost due to the common use of the activated carbon. The invention utilizes the characteristic of higher carbon content of sludge to prepare the sludge coal oxidant with high performance and low cost for sewage treatment.
Disclosure of Invention
The invention aims to provide an oxidant for sewage treatment, which utilizes the characteristic of higher carbon content of sludge to prepare a high-performance low-cost sludge carbon oxidant and solves the problems of complex preparation process, higher cost and poorer oxidation effect of the traditional oxidant.
In order to solve the technical problems, the invention is realized by the following technical scheme:
the invention relates to an oxidant for sewage treatment, which comprises the following raw materials in parts by weight: 5-7 parts of ferric nitrate crystal, 3-5 parts of magnesium nitrate crystal, 4-8 parts of zinc chloride, 30-40 parts of dry sludge and 50-80 parts of distilled water.
A preparation method of an oxidant for sewage treatment comprises the following steps:
SS01 crushing the dewatered dry sludge in a crusher, sieving the crushed dry sludge with a 100-mesh sieve, and sealing and storing the sieved powder dry sludge for later use;
SS02 weighing ferric nitrate crystal, magnesium nitrate crystal, zinc chloride, dry sludge and distilled water in proportion for later use;
SS03, sequentially adding the ferric nitrate crystal, the magnesium nitrate crystal, the zinc chloride, the dry sludge and the distilled water obtained in the step SS02 into a beaker for premixing, then putting the beaker containing the mixed material into a constant temperature oscillator for fully mixing, controlling the mixing temperature to be between 40 and 50 ℃, controlling the rotating speed of the constant temperature oscillator to be 50 to 80 r/min, controlling the mixing time to be 24 hours, and after the mixing is finished, sealing and storing the material;
SS04, placing the mixed material obtained in the step SS03 into a forced air drying oven for drying, controlling the temperature in the forced air drying oven to be between 101 ℃ and 105 ℃, controlling the drying time to be 24 hours, drying the mixed material to constant weight, and taking out for later use;
SS05 transferring the mixed material obtained in the step SS04 into a porcelain boat, then putting the porcelain boat into a tubular resistance furnace, and carbonizing the mixed material in the porcelain boat under the protection of nitrogen to obtain a peat oxidizing agent;
SS06 grinding the sludge carbon oxide obtained in the step SS05 in grinding equipment, controlling the grinding temperature to be 25-35 ℃, controlling the rotation speed of the grinding equipment to be 600-800 rpm, controlling the grinding time to be 30-40 minutes, sieving the obtained product through a 100-mesh sieve after grinding is finished, and sealing and storing the obtained powder sludge carbon oxide after sieving.
Furthermore, the constant temperature oscillator in the step SS03 adopts a water bath heating mode, so that the water temperature is easy to control, and the temperature environment for mixing materials is ensured.
Further, the temperature of the tubular resistance furnace in the step SS05 is set to be 450-650 ℃, the heating rate is 10 ℃ per minute, the carbonization of the material is finished, and the porcelain boat is taken out after the interior of the tubular resistance furnace is cooled to room temperature.
The invention has the following beneficial effects: the invention takes ferric nitrate crystal, magnesium nitrate crystal, zinc chloride, dry sludge and distilled water as raw materials, strictly controls the proportion of each component, prepares the sludge coal oxidizer, has certain adsorption and purification effects, and the finished product oxidizer is granular, is convenient to store, has simple preparation process and good oxidation effect, realizes the resource utilization of sludge, reduces the production cost of the oxidizer for sewage treatment, changes waste into valuable, and has environmental benefit and economic benefit.
Of course, it is not necessary for any product in which the invention is practiced to achieve all of the above-described advantages at the same time.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
The invention relates to an oxidant for sewage treatment, which comprises the following raw materials in parts by weight: 5 parts of ferric nitrate crystal, 3 parts of magnesium nitrate crystal, 4 parts of zinc chloride, 30 parts of dry sludge and 58 parts of distilled water.
A preparation method of an oxidant for sewage treatment comprises the following steps:
SS01 crushing the dewatered dry sludge in a crusher, sieving the crushed dry sludge with a 100-mesh sieve, and sealing and storing the sieved powder dry sludge for later use;
SS02 weighing ferric nitrate crystal, magnesium nitrate crystal, zinc chloride, dry sludge and distilled water in proportion for later use;
SS03, sequentially adding the ferric nitrate crystal, the magnesium nitrate crystal, the zinc chloride, the dry sludge and the distilled water obtained in the step SS02 into a beaker for premixing, then putting the beaker containing the mixed material into a constant temperature oscillator for fully mixing, controlling the mixing temperature to be between 40 and 50 ℃, controlling the rotating speed of the constant temperature oscillator to be 50 to 80 r/min, controlling the mixing time to be 24 hours, and after the mixing is finished, sealing and storing the material;
SS04, placing the mixed material obtained in the step SS03 into a forced air drying oven for drying, controlling the temperature in the forced air drying oven to be between 101 ℃ and 105 ℃, controlling the drying time to be 24 hours, drying the mixed material to constant weight, and taking out for later use;
SS05 transferring the mixed material obtained in the step SS04 into a porcelain boat, then putting the porcelain boat into a tubular resistance furnace, and carbonizing the mixed material in the porcelain boat under the protection of nitrogen to obtain a peat oxidizing agent;
SS06 grinding the sludge carbon oxide obtained in the step SS05 in grinding equipment, controlling the grinding temperature to be 25-35 ℃, controlling the rotation speed of the grinding equipment to be 600-800 rpm, controlling the grinding time to be 30-40 minutes, sieving the obtained product through a 100-mesh sieve after grinding is finished, and sealing and storing the obtained powder sludge carbon oxide after sieving.
Wherein, the constant temperature oscillator in the step SS03 adopts a heating mode of water bath heating, so that the water temperature is easy to control, and the temperature environment for mixing materials is ensured.
Wherein the temperature of the tubular resistance furnace in the step SS05 is set to be 450-650 ℃, the heating rate is 10 ℃ per minute, the material carbonization is finished, and the porcelain boat is taken out after the interior of the tubular resistance furnace is cooled to room temperature, so as to avoid scalding.
Example 2
The invention relates to an oxidant for sewage treatment, which comprises the following raw materials in parts by weight: 6 parts of ferric nitrate crystal, 4 parts of magnesium nitrate crystal, 5 parts of zinc chloride, 35 parts of dry sludge and 50 parts of distilled water.
A preparation method of an oxidant for sewage treatment comprises the following steps:
SS01 crushing the dewatered dry sludge in a crusher, sieving the crushed dry sludge with a 100-mesh sieve, and sealing and storing the sieved powder dry sludge for later use;
SS02 weighing ferric nitrate crystal, magnesium nitrate crystal, zinc chloride, dry sludge and distilled water in proportion for later use;
SS03, sequentially adding the ferric nitrate crystal, the magnesium nitrate crystal, the zinc chloride, the dry sludge and the distilled water obtained in the step SS02 into a beaker for premixing, then putting the beaker containing the mixed material into a constant temperature oscillator for fully mixing, controlling the mixing temperature to be between 40 and 50 ℃, controlling the rotating speed of the constant temperature oscillator to be 50 to 80 r/min, controlling the mixing time to be 24 hours, and after the mixing is finished, sealing and storing the material;
SS04, placing the mixed material obtained in the step SS03 into a forced air drying oven for drying, controlling the temperature in the forced air drying oven to be between 101 ℃ and 105 ℃, controlling the drying time to be 24 hours, drying the mixed material to constant weight, and taking out for later use;
SS05 transferring the mixed material obtained in the step SS04 into a porcelain boat, then putting the porcelain boat into a tubular resistance furnace, and carbonizing the mixed material in the porcelain boat under the protection of nitrogen to obtain a peat oxidizing agent;
SS06 grinding the sludge carbon oxide obtained in the step SS05 in grinding equipment, controlling the grinding temperature to be 25-35 ℃, controlling the rotation speed of the grinding equipment to be 600-800 rpm, controlling the grinding time to be 30-40 minutes, sieving the obtained product through a 100-mesh sieve after grinding is finished, and sealing and storing the obtained powder sludge carbon oxide after sieving.
Wherein, the constant temperature oscillator in the step SS03 adopts a heating mode of water bath heating, so that the water temperature is easy to control, and the temperature environment for mixing materials is ensured.
Wherein the temperature of the tubular resistance furnace in the step SS05 is set to be 450-650 ℃, the heating rate is 10 ℃ per minute, the material carbonization is finished, and the porcelain boat is taken out after the interior of the tubular resistance furnace is cooled to room temperature, so as to avoid scalding.
The invention provides an oxidant for sewage treatment and a preparation method thereof, wherein ferric nitrate crystals, magnesium nitrate crystals, zinc chloride, dry sludge and distilled water are used as raw materials, the specific gravity of each component is strictly controlled, the sludge coal oxidant is prepared, the sludge coal oxidant has a certain adsorption and purification effect, the finished oxidant is granular, is convenient to store, has a simple preparation process and a good oxidation effect, realizes resource utilization of sludge, reduces the production cost of the oxidant for sewage treatment, changes waste into valuables, and has environmental benefits and economic benefits.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (4)
1. The oxidant for sewage treatment is characterized by comprising the following raw materials in parts by weight: 5-7 parts of ferric nitrate crystal, 3-5 parts of magnesium nitrate crystal, 4-8 parts of zinc chloride, 30-40 parts of dry sludge and 50-80 parts of distilled water.
2. The method for preparing the oxidizing agent for sewage treatment according to claim 1, comprising the steps of:
SS01 crushing the dewatered dry sludge in a crusher, sieving the crushed dry sludge with a 100-mesh sieve, and sealing and storing the sieved powder dry sludge for later use;
SS02 weighing ferric nitrate crystal, magnesium nitrate crystal, zinc chloride, dry sludge and distilled water in proportion for later use;
SS03, sequentially adding the ferric nitrate crystal, the magnesium nitrate crystal, the zinc chloride, the dry sludge and the distilled water obtained in the step SS02 into a beaker for premixing, then putting the beaker containing the mixed material into a constant temperature oscillator for fully mixing, controlling the mixing temperature to be between 40 and 50 ℃, controlling the rotating speed of the constant temperature oscillator to be 50 to 80 r/min, controlling the mixing time to be 24 hours, and after the mixing is finished, sealing and storing the material;
SS04, placing the mixed material obtained in the step SS03 into a forced air drying oven for drying, controlling the temperature in the forced air drying oven to be between 101 ℃ and 105 ℃, controlling the drying time to be 24 hours, drying the mixed material to constant weight, and taking out for later use;
SS05 transferring the mixed material obtained in the step SS04 into a porcelain boat, then putting the porcelain boat into a tubular resistance furnace, and carbonizing the mixed material in the porcelain boat under the protection of nitrogen to obtain a peat oxidizing agent;
SS06 grinding the sludge carbon oxide obtained in the step SS05 in grinding equipment, controlling the grinding temperature to be 25-35 ℃, controlling the rotation speed of the grinding equipment to be 600-800 rpm, controlling the grinding time to be 30-40 minutes, sieving the obtained product through a 100-mesh sieve after grinding is finished, and sealing and storing the obtained powder sludge carbon oxide after sieving.
3. The method for preparing the oxidizing agent for sewage treatment according to claim 2, wherein the constant temperature oscillator in step SS03 adopts a heating mode of water bath heating, so that the water temperature is easy to control, and the temperature environment of material mixing is ensured.
4. The method as claimed in claim 2, wherein the temperature of the tubular resistance furnace in step SS05 is set to 450-650 ℃, the temperature rising rate is 10 ℃ per minute, the carbonization of the material is completed, and the porcelain boat is taken out after the interior of the tubular resistance furnace is cooled to room temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201911256867.2A CN110902803A (en) | 2019-12-10 | 2019-12-10 | Oxidant for sewage treatment and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911256867.2A CN110902803A (en) | 2019-12-10 | 2019-12-10 | Oxidant for sewage treatment and preparation method thereof |
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