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A kind of adsorption method of methylene blue in printing and dyeing wastewater

A technology of printing and dyeing wastewater, methylene blue, applied in chemical instruments and methods, water pollutants, biological water/sewage treatment, etc., to achieve the effects of strong vitality, low treatment cost and high aesthetic value

Active Publication Date: 2019-02-05
德宏师范高等专科学校
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Mikania micrantha (Mikania micrantha H.B.K), also known as Eupatorium micrantha and Eupatorium micrantha, is a perennial herbaceous or woody vine of the genus Mikania in the Asteraceae family (Asteraceae). It is native to Central America and is now a tropical and subtropical region. A kind of vicious weed of Mikania micrantha. A lot of researches have been done on the medical activity and pesticide activity of Mikania micrantha at home and abroad. At present, there is no report on the use of Mikania micrantha in the treatment of dye wastewater. At present, the use of Mikania micrantha in the treatment of printing and dyeing wastewater is still in a blank stage.

Method used

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  • A kind of adsorption method of methylene blue in printing and dyeing wastewater
  • A kind of adsorption method of methylene blue in printing and dyeing wastewater
  • A kind of adsorption method of methylene blue in printing and dyeing wastewater

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Experimental program
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Effect test

Embodiment 1

[0029] Mikania micrantha comes from the wild in Mangshi, Dehong Prefecture. The stem of Mikania micrantha with a length of 40cm is cut, placed in a container with tap water, and then placed indoors in a sunny place for 15 days to grow fibrous roots; Mikania micrantha, which has basically the same growth and weight, is inserted into the treatment pool containing the printing and dyeing wastewater to be treated;

[0030] The amount of printing and dyeing wastewater to be treated is 250mL, the concentration of methylene blue is 10mg / L, and the pH is adjusted to between 2 and 12. There is a plant of Mikania micrantha in each treatment pool, and samples are taken at different time periods to determine the concentration of methylene blue in the printing and dyeing wastewater. Calculate removal rate, the result is as figure 1 shown;

[0031] Among them, when the pH of printing and dyeing wastewater was 2, Mikania micrantha died on the 2nd day, and the adsorption rate was 55.14%; whe...

Embodiment 2

[0033] Cut off the stem of Mikania micrantha with a length of 40 cm, place it in a container with tap water, and then place it indoors in a sunny place to cultivate for 15 days, until it grows fibrous roots; select Mikania micrantha with a fibrous root of 10 cm, basically the same growth, and basically the same weight. Insert it into the treatment tank containing the printing and dyeing wastewater to be treated;

[0034] The printing and dyeing wastewater to be treated is 250mL, the concentration of methylene blue is adjusted to 5, 10, 15, 20, 30, 40, 50mg / L, and the pH is 8. There is a plant of Mikania micrantha in each treatment pool, and samples are taken at different time periods. The concentration of methylene blue in the printing and dyeing wastewater, calculate the removal rate, the result is as follows figure 2 shown;

[0035] Among them, Mikania micrantha was cultivated in printing and dyeing wastewater with a methylene blue concentration of 30-50 mg / L, and Mikania ...

Embodiment 3

[0037] Cut off the stem of Mikania micrantha with a length of 40 cm, put it in a container with tap water, and then cultivate it in a sunny place indoors for 15 days, until it grows fibrous roots; select Mikania micrantha with 8-12 cm fibrous roots, good growth and basically the same weight , inserting it into the treatment pool containing printing and dyeing wastewater to be treated;

[0038] The printing and dyeing wastewater to be treated is 250mL, the methylene blue concentration is 20mg / L, and the pH is 8. There is a plant of Mikania micrantha in each treatment pool, which is adsorbed for 3 days to obtain the adsorbed Mikania micrantha and the treated printing and dyeing wastewater;

[0039]Recycling: recycle the adsorbed Mikania micrantha, specifically cut off and discard the part of the adsorbed Mikania micrantha with fibrous roots, take the remaining part, put it in tap water, and then cultivate it in a sunny place indoors for 15 days. After it grows fibrous roots, reg...

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Abstract

The invention discloses a method for adsorbing methylene blue in printing and dyeing wastewater. The method includes the following steps that firstly, mikania micrantha is cultivated, wherein a section of mikania micrantha is obtained, placed in water and then placed at an indoor position facing the sun to be cultured for 10-20 days till the mikania micrantha roots; secondly, methylene blue is adsorbed, wherein mikania micrantha which has the root being 8-12 cm long and is uniform in weight is selected and inserted in a treatment pond containing to-be-treated printing and dyeing wastewater, at least four mikania micrantha plants are inserted in each liter of printing and dyeing wastewater, adsorption is conducted for 1-7 days, and mikania micrantha subjected to adsorption and the treated printing and dyeing wastewater are obtained. Methylene blue in the wastewater is removed by means of mikania micrantha, the method has the advantages of being high in treatment efficiency, good in treatment effect, high in artistic value and low in treatment cost, secondary pollution is not caused, and the aim of purifying water is achieved. Meanwhile, related support and bases are provided for biomass resource recycling of mikania micrantha and building of water plant restoration feasibility in the field of printing and dyeing wastewater treatment.

Description

technical field [0001] The invention belongs to the technical field of wastewater treatment, and in particular relates to an adsorption method for methylene blue in printing and dyeing wastewater. Background technique [0002] The printing and dyeing industry is one of the heavy polluting industries, and it is the focus of attention in the field of wastewater treatment. Methylene blue widely exists in printing and dyeing wastewater, and this kind of wastewater containing methylene blue has caused serious pollution and damage to the ecological environment. Methylene blue can cause irreversible damage to the eyes and skin of humans and animals. In mild cases, it can cause severe discomfort or allergies, and in severe cases, it can cause cancer. In addition, methylene blue can also cause increased heart rate, vomiting, shock, jaundice, and tissue necrosis. Not only that, printing and dyeing wastewater also interferes with light transmission, and wastewater with a darker color...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F3/32C02F101/36C02F101/38
CPCC02F3/32C02F2101/36C02F2101/38
Inventor 杨新周杨子仙郭云胶施洪胥万松董毅
Owner 德宏师范高等专科学校
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