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A kind of preparation method of banana peel polymer coagulant for water treatment

A technology for skin polymer and water treatment, which is applied in the field of water treatment to achieve the effects of low energy consumption, simple production equipment and process, and prolonged storage time.

Inactive Publication Date: 2018-04-27
UNIV OF JINAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, in domestic and foreign literature databases, there is no relevant report on the preparation of banana peel coagulant for water treatment by simple "low temperature water extraction method" using banana peel as raw material

Method used

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  • A kind of preparation method of banana peel polymer coagulant for water treatment
  • A kind of preparation method of banana peel polymer coagulant for water treatment
  • A kind of preparation method of banana peel polymer coagulant for water treatment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Dry the banana peel and crush it into a powder. At a stirring speed of 150 rpm to 300 rpm, add 95L of water at 30°C to 2Kg of powdered banana peel, stir for 1 minute, and then continue heating at 30°C for 2 hours to obtain the extracted Mixture, set aside. At a stirring speed of 300 rpm to 800 rpm and a temperature of 30°C, add 0.1 L of sodium hydroxide solution with a mass fraction of 20% to the above extraction mixture and stir for 10 minutes to obtain the alkali Polymerize, stop stirring, leave to ripen at room temperature, control the ripening time to 0.5 hour, and make the liquid product of banana peel polymer coagulant for water treatment of dark brown.

Embodiment 2

[0032] Dry the banana peel and crush it into a powder. At a stirring speed of 150 rpm to 300 rpm, add 300L of water at 50°C to 40Kg of powdered banana peel, stir for 3 minutes, and then continue heating at 50°C for 4 hours to obtain the extracted Mixture, set aside. At a stirring speed of 300 rpm to 800 rpm and a temperature of 50°C, 4 L of sodium hydroxide solution with a mass fraction of 30% was added to the above extraction mixture and stirred for 15 minutes to obtain alkali poly liquid, spare. At a stirring speed of 150 rpm to 350 rpm and a temperature of 50°C, add 3 L of sodium hypochlorite solution with a mass fraction of 10% to the above alkali polymerization solution and stir for 3 minutes to obtain an alkali polymerization blending solution , stop stirring, leave it to mature at room temperature, control the curing time to be 24 hours, and obtain a yellow-brown banana peel polymer coagulant liquid product for water treatment.

Embodiment 3

[0034] Dry the banana peel and crush it into a powder. At a stirring speed of 150 rpm to 300 rpm, add 210L of water at 50°C to 20Kg of powdered banana peel, stir for 5 minutes, and then continue heating at 50°C for 3.5 hours to obtain the extracted Mixture, set aside. At a stirring speed of 300 rpm to 800 rpm and a temperature of 50°C, 4 L of sodium hydroxide solution with a mass fraction of 40% was added to the above extraction mixture, and stirred for 25 minutes to obtain alkali poly liquid, spare. At a stirring speed of 150 rpm to 350 rpm and a temperature of 50°C, add 5 L of sodium hypochlorite solution with a mass fraction of 10% to the above alkali polymerization solution and stir for 10 minutes to obtain an alkali polymerization blending solution , and then at a stirring speed of 150 rpm to 350 rpm and a temperature of 50°C, add 0.01L of Casson's solution with a mass fraction of 14% of the active ingredient into the above-mentioned alkali-polymerization blending solut...

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Abstract

The invention belongs to the technical field of water treatment, and relates to a preparation technology of a banana peel polymer coagulant for water treatment, which mainly adopts the "low temperature water extraction method" at 30°C to 50°C, including the following steps: (1) Under the condition of temperature and stirring, a certain amount of water is added to the crushed banana peel powder for leaching; (2) under the condition of certain temperature and stirring, add a small amount of sodium hydroxide solution; (3) optionally add A certain amount of sodium hypochlorite and stabilizer to obtain coagulant products with different effects and stability. The technology of the present invention can prepare a kind of banana peel utilization rate is higher, and preparation cost is lower, and effluent pH value is in neutral or slightly alkaline range, and stability is better, and water treatment effect is more excellent, especially to chromaticity, Banana peel polymer coagulant for water treatment with high heavy metal removal efficiency. The banana peel polymer coagulant for water treatment in the present invention can be widely used in the fields of drinking water, urban sewage, industrial waste water and the like.

Description

technical field [0001] The invention belongs to the technical field of water treatment, and relates to a preparation technology of a banana peel polymer coagulant for water treatment using banana peel as a raw material. Background technique [0002] The coagulation process is one of the most commonly used unit operations in many water treatment technologies, and it belongs to the physical and chemical treatment method of water. By adding coagulants (or water purifiers, flocculants) to water and waste water, the colloidal substances or smaller suspended solids that are difficult to settle are coagulated and flocculated, and then precipitated and separated to make drinking water and waste water All kinds of sewage (waste) water are purified. In drinking water treatment, coagulation, as an essential pre-operation process in the surface water purification process, can reduce the turbidity, color and other related physical and chemical indicators of raw water, and can also remov...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F1/56
CPCC02F1/56
Inventor 付英陆宁宁
Owner UNIV OF JINAN
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