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Comprehensive treatment agent for water bodies and bottom mud of river channels and method for preparing comprehensive treatment agent

A comprehensive treatment agent and treatment agent technology, applied in water/sludge/sewage treatment, water/sewage treatment, biological water/sewage treatment, etc., can solve the problems of long restoration period, re-contamination of aquatic plants and microorganisms, etc.

Active Publication Date: 2019-02-19
JIANGXI ACADEMY OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, bioremediation has obvious limitations, mainly including long repair period, greater influence by uncontrollable environmental factors, corruption and decomposition of aquatic plants and microorganisms may re-pollute water bodies, etc.

Method used

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  • Comprehensive treatment agent for water bodies and bottom mud of river channels and method for preparing comprehensive treatment agent
  • Comprehensive treatment agent for water bodies and bottom mud of river channels and method for preparing comprehensive treatment agent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Prepare the comprehensive treatment agent for river water and sediment according to the following steps:

[0029] (1) Form a mixed solution of methyl cellulose, chitosan and starch with a mass ratio of 1:1:1 and an appropriate amount of water, heat to 100°C, and keep warm for 30 minutes to obtain a degradable binder;

[0030] (2) Put the black algae seeds with a mass ratio of 1:5:1:2, pre-passed 200-mesh activated carbon, PGPR preparation and degradable binder in the mixer, mix the materials evenly, and then send them into granulation Granulate in the machine to form submerged plant seed granules with a diameter of 1.0-1.5cm;

[0031] (3) Attapulgite, activated carbon, bentonite, microbial agent and degradable binder that have passed a 100-mesh sieve in a mass ratio of 2:2:2:1:3 are placed in a mixer and mixed evenly. The material is sent into a roller granulator, and the submerged plant seed particles obtained in step (2) are used as a nucleus, and the roller granulat...

Embodiment 2

[0035] Step is the same as Example 1, wherein step (2) selects Ellipsia galenica and Foxtail Algae seeds for use, and the mass ratio of submerged plant seeds, gac, PGPR preparation and degradable binder is 1:10:1:4; step ( 3) The mass ratio of attapulgite, activated carbon, bentonite, microbial agent and degradable binder is 5:5:5:3:6; in step (4), calcium peroxide, kaolin, quartz sand and degradable binder The binder mass ratio is 4:1:1:3.

[0036] Small test experiment 1: A small ditch located in a suburban industrial park was selected as the small test object. The industrial structure of the industrial park is relatively simple, mainly producing chemical fertilizers and organic fertilizers to meet the needs of large-scale planting in the surrounding area and rural residents. demand. Since the sewage treatment technology and water network system in the park are not very developed, some waste will flow into small ditches with rainwater washing and surface runoff, resulting i...

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Abstract

The invention relates to a comprehensive treatment agent for water bodies and bottom mud of river channels and a method for preparing the comprehensive treatment agent, and belongs to the field of water environment protection. The comprehensive treatment agent is of a multilayer spherical structure and sequentially comprises a submerged plant seed layer, a composite biological preparation layer and an oxygen release layer from the inside to the outside. The submerged plant seed layer comprises submerged plant seeds, activated carbon and PGRR (plant growth promoting rhizobacteria) preparations;the composite biological preparation layer comprises attapulgite, activated carbon, bentonite and microbial agents; the oxygen release layer comprises calcium peroxide, kaolin and quartz sand. The comprehensive treatment agent and the method have the advantages that the comprehensive treatment agent prepared by the aid of the method can be directly spread to the river channels and gradually sinksat water bottoms, oxygen can be slowly released, nitrogen, phosphorus and heavy metal in the water bodies can be treated by mineral and microbial preparations in fillers, submerged plants ultimatelygrow and breed, accordingly, the river channels can be ecologically restored, and the ornamental value of landscape of the river channels can be improved.

Description

technical field [0001] The invention relates to a comprehensive treatment agent for river channel water and bottom mud and a preparation method thereof, belonging to the field of water environment protection. Background technique [0002] With the rapid advancement of urbanization and the rapid development of regional social economy, the problem of environmental pollution is becoming more and more serious, among which the pollution of water environment is particularly prominent, and the form of river pollution caused by factors such as agricultural non-point source pollution, industrial wastewater and domestic sewage is becoming increasingly serious , Seriously hindering China's progress in building an ecologically civilized society. [0003] River pollution is mainly reflected in two aspects, water pollution and sediment pollution, both of which are interdependent and mutually reinforcing. Pollutants in polluted river water can enter the sediment through physical sedimenta...

Claims

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Application Information

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IPC IPC(8): C02F3/34C02F3/32C02F101/20C02F101/16C02F101/10C02F101/30
CPCC02F1/281C02F1/283C02F1/722C02F3/32C02F3/322C02F3/34C02F3/342C02F2101/105C02F2101/16C02F2101/20C02F2101/306C02F2103/007
Inventor 游海林吴永明徐力刚邓觅刘丽贞姚忠辛在军
Owner JIANGXI ACADEMY OF SCI
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