Composite wastewater treatment medicament and preparation method thereof

A waste water treatment and medicament technology, applied in the direction of adsorption water/sewage treatment, oxidized water/sewage treatment, water/sludge/sewage treatment, etc., can solve the problems of complex process, expensive equipment, harsh conditions, etc., and shorten the residence time , The removal ability is obvious, the effect of the treatment process is rapid

Active Publication Date: 2019-05-14
江苏环保产业技术研究院股份公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, some of these technologies have complex processes and harsh conditions. For example, the use of Fenton needs to

Method used

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  • Composite wastewater treatment medicament and preparation method thereof
  • Composite wastewater treatment medicament and preparation method thereof
  • Composite wastewater treatment medicament and preparation method thereof

Examples

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Example Embodiment

[0036] Example 1

[0037] A preparation method of a composite wastewater treatment agent of POM and carbon nanotube modified activated carbon powder:

[0038] Weigh 50g of sodium tungstate dihydrate and 25g of disodium hydrogen phosphate and dissolve them in 250g of water. Stir at 100r / min for 1h at 60°C until a thin crystalline film begins to appear, and solution A is obtained; Add 250ml to A, the mass fraction is 24% and the density is 1.12g / cm 3 Hydrochloric acid, then add 26.9g of sodium hypochlorite, 26.9g of cobalt nitrate and 13.4g of potassium persulfate, stir for 2h on a water bath at 60℃ at a speed of 50r / min for reaction to obtain solution B; then add 20.75g of carboxylated carbon to solution B Nanotubes, 2.08g double dispersion stabilizer and 51.88g polymeric iron salt, and under the protection of inert gas, the reaction was carried out with continuous stirring at 100°C at a speed of 150r / min to obtain solution C; 40g activated carbon powder was added to 133.3g Mix in ...

Example Embodiment

[0039] Example 2

[0040] A preparation method of a composite wastewater treatment agent of POM and carbon nanotube modified activated carbon powder:

[0041] Weigh 50g of sodium tungstate dihydrate and 25g of disodium hydrogen phosphate and dissolve in 250g of water, stir for 1.5h at a speed of 200r / min at 70℃ and evaporate until a thin crystalline film begins to appear, to obtain solution A; then to solution A While stirring, add 250mL with a mass fraction of 24% and a density of 1.12g / cm 3 Add 42.8g of sodium hypochlorite, 42.8g of cobalt nitrate and 21.4g of potassium persulfate, and stir for 3h at a speed of 100r / min on a 70℃ water bath to obtain solution B; then add 30.7g of hydroxylation to solution B Carbon nanotubes, 3.07g double-dispersion stabilizer, 46.1g polymeric iron salt and 46.1g polymeric aluminum salt, and under the protection of inert gas, react with continuous stirring at 150°C and 200r / min to obtain solution C; 40g activated carbon powder was added to 150g de...

Example Embodiment

[0042] Example 3

[0043] A preparation method of a composite wastewater treatment agent of POM and carbon nanotube modified activated carbon powder:

[0044] Weigh 50g of sodium tungstate dihydrate and 25g of disodium hydrogen phosphate and dissolve in 500g of water, stir for 2h at 80°C at 300r / min and evaporate until a thin crystalline film begins to appear, obtaining solution A; then in solution A While stirring, add 500ml with a mass fraction of 24% and a density of 1.12g / cm 3 Add 113.5g of sodium hypochlorite, 113.5g of cobalt nitrate and 56.75g of potassium persulfate to the solution, stir for 4h at a speed of 150r / min on a water bath at 80℃ for reaction to obtain solution B; then add 77.1 to solution B g hydroxylated carbon nanotubes, 7.7g double-dispersion stabilizer and 269.9g polyaluminum salt, and under the protection of inert gas, the reaction is carried out at a temperature of 200°C and a stirring speed of 250r / min to obtain solution C; Add 40g of activated carbon pow...

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Abstract

The invention discloses a composite wastewater treatment medicament and a preparation method thereof, and belongs to the technical field of recycled water treatment. The water treatment medicament prepared through the invention modifies an activated carbon system through a carbon-nano tube, the specific area of the medicament is increased, a porosity structure is intensified, and adsorption, electrostatic and other effects are enhanced, so that quick enrichment of pollutants is realized; the loaded persulfate plays a catalytic action through the Co and Fe ions combined by polyoxometalate (POM), the production of the sulfate free radical and hydroxy free radical is further promoted by combining the use of the hydrogen peroxide, and an advanced oxidation effect for activating the persulfateis formed, and the enriched pollutants are efficiently oxidized and degraded. The water treatment medicament prepared through the invention has oxidation and adsorption functions, and can effectivelyremove phosphorous, color and COD.

Description

technical field [0001] The invention relates to a composite wastewater treatment agent of polyoxometalate POM and carbon nanotube modified activated carbon powder and a preparation method thereof, belonging to the technical field of regenerated water treatment. Background technique [0002] With the continuous improvement of people's living standards in our country and the continuous expansion of industrial scale and industrial types, the volume and types of wastewater generated by production and life continue to increase. In particular, the expansion of petroleum, chemical, printing and dyeing, textile, leather and other industries has brought about an increase in wastewater discharge, and the wastewater has various components and complex physical and chemical properties. A lot of industrial wastewater has the characteristics of high COD, high chroma, high heavy metal content, and poor biodegradability, which makes many biological methods unable to be successfully applied t...

Claims

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Application Information

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IPC IPC(8): C02F1/72C02F1/52C02F1/28C02F101/16C02F101/20
Inventor 闫懂懂陈朋利杜凌峰吴伟刘波吴海锁
Owner 江苏环保产业技术研究院股份公司
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