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Ecological floating island material with adsorption removal function on nitrate nitrogen and preparation process thereof

An ecological floating island and nitrate nitrogen technology, applied in the field of nitrate nitrogen pollution control, to achieve high phosphorus adsorption efficiency and environmental friendliness

Inactive Publication Date: 2020-05-29
光合强化(北京)生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there is still a lack of ecological floating island materials that can adsorb and remove nitrate nitrogen

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] (1) Add 52.09g of activated carbon to 250mL of nitric acid solution with a concentration of 10% by mass, stir for 50 minutes under the condition of 1000r / min, filter and remove the liquid, wash with 500mL of deionized water and place in a drying oven at 105°C In 35 minutes, substance A was obtained;

[0019] (2) 19.66g of chitosan is added to 800mL of 5% acetic acid solution in mass percent concentration, stirred for 3 minutes under the condition of 1000r / min, shaken up and divided into 4 equal parts to obtain mixed solution G1 and mixed solution G2 , mixed solution G3, mixed solution G4;

[0020] (3) Add 8.32 grams of phosphate-β-cyclodextrin and 50 mL of dimethyl sulfoxide into 150 mL of isopropanol, stir for 3 minutes at 1000 r / min, shake well and divide into 4 equal parts to obtain a mixture Liquid H1, mixed liquid H2, mixed liquid H3, mixed liquid H4;

[0021] (4) Add the mixed solution H1 and 8mL of 4-(N-methylpiperidinyl)oxirane into the mixed solution G1, and ...

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PUM

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Abstract

The invention discloses an ecological floating island material with an adsorption removal function on nitrate nitrogen. After activated carbon is cleaned the cleaned activated carbon is modified witha mixed solution prepared from chitosan, acetic acid, phosphate-beta-cyclodextrin, dimethyl sulfoxide, isopropanol and 4-(N-methylpiperidyl)oxirane to obtainadsorption removal function on nitrate nitrogen. The ecological floating island material has the beneficial effects that the prepared ecological floating island material with the adsorption removal function on nitrate nitrogen has the characteristics of environmental friendliness, high phosphorus adsorption efficiency and the like.

Description

technical field [0001] The invention belongs to the technical field of nitrate nitrogen pollution control in polluted water, and in particular relates to an ecological floating island material capable of absorbing and removing nitrate nitrogen and a preparation process thereof. Background technique [0002] With the rapid development of my country's economy, the rapid expansion of cities and the improvement of people's living standards, some rivers flowing through large and medium-sized cities and towns, their aquatic habitats are facing heavy pollution loads, serious sediment pollution, poor river flow, and ecological problems in the riparian zone. There are a series of problems such as the degradation of the river and the simplification of the cut and straight of the river. Among them, the eutrophication of the river caused by the discharge of a large amount of domestic sewage along the river is quite serious. For river water bodies whose water quality has deteriorated, it ...

Claims

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Application Information

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IPC IPC(8): C02F3/32C02F101/16C02F101/10
CPCC02F3/32C02F2101/105C02F2101/16
Inventor 不公告发明人
Owner 光合强化(北京)生物科技有限公司