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Method for recycling water sediment

A resource utilization and sediment technology, applied in the direction of botanical equipment and methods, applications, planting substrates, etc., can solve the problems of insufficient utilization of sediment, large investment in treatment facilities, unfavorable environmental governance, etc., and achieve less odor and better performance The effect of stabilizing and promoting growth and reproduction

Inactive Publication Date: 2017-08-11
SHANSHUI LANDSCAPE
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

However, the obtained solid fuel has only reached the combustion level of low-quality coal, and does not make full use of the nutrients such as nitrogen, phosphorus, and potassium in the sediment itself. After burning, it may cause further air pollution, which is not conducive to environmental governance.
[0007] Patent 201010165633.X also discloses a resource-based comprehensive treatment method for lake sediment endogenous pollution. It specifically discloses that the sediment is dug out by excavation, and after the heavy metal pollutants in the sediment are properly treated, it is recycled Utilization, such as biocomposting, soil improvement, sludge fuel or building materials and chemical raw materials, etc., but the process is complicated, the investment in treatment facilities is large, and the treatment cost is high, so it is not suitable for practical application.

Method used

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Embodiment 1-10

[0045] Embodiment 1-10, adopt the method of the present invention to prepare humic substance product

[0046] In all the embodiments of this series, the method of the present invention has the following characteristics: the method is used for resource treatment of water body sediment, and the method includes the following steps: the weight ratio of the sediment to the culture substrate is 10:1 -3 After mixing and pulverizing the raw materials, inoculating high-temperature-resistant organic matter-degrading bacteria for high-temperature fermentation in an aerobic environment to obtain humus;

[0047] The inoculum amount of the organic matter-degrading bacteria is 1-10% of the weight of the raw material, see Table 1 below for details; see Table 1 below for the grinding fineness and the culture substrate.

[0048] Table 1

[0049]

[0050]

[0051] The bottom mud of type A is ordinary bottom mud; the bottom mud of type B is the bottom mud that meets the national "soil envi...

Embodiment 11-30

[0054] Embodiment 11-30, using the method of the present invention to further prepare the cultivation substrate

[0055] In this series of embodiments, the auxiliary material formula used is specifically shown in Table 2 below:

[0056] Table 2

[0057]

[0058]

[0059] The specific operating parameters of the method provided by this series of embodiments, and the corresponding cultivation substrate product performance values ​​obtained are shown in Table 3 below:

[0060] table 3

[0061]

[0062]

[0063] The methods in the above-mentioned embodiments all include this step: mixing the auxiliary material and the humic substance in the weight ratio listed in the above table.

[0064] The types of cultivated plants involve: aquatic plants, such as: dry grass, dwarf dry grass, snapdragon, foxtail, water lily; non-aquatic plants, such as: coleus, pothos, asparagus, rose.

[0065] During the cultivation effect testing process, 100 plants were cultivated for each pl...

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Abstract

The invention relates to 'a method for recycling water sediment' and belongs to the technical field of water remediation. The method is characterized by comprising: mixing sediment and a culture medium in a weight ratio of 10:(1-3), crushing to obtain a raw material, and inoculating organic matter degrading bacteria tolerant to high temperature to carry out high-temperature fermentation in aerobic environment to obtain humus; the culture medium includes plant straws, seed shells, and / or fruit shells. The humus has high conversion rate and high decomposition degree, can greatly promote the growth and reproduction of plants, may act as agricultural compost, cultivation media and the like and may be recycled in water as cultivation media for aquatics.

Description

technical field [0001] The invention relates to the technical field of water body restoration, in particular to a method for resourceful treatment of water body sediment. [0002] technical background [0003] Sediment is formed by the deposition of various substances in the water at the bottom of the water body after long-term physical, chemical and biological interactions under the action of water body transmission. Therefore, it not only contains nutrients such as organic matter, nitrogen, phosphorus, and potassium, but also may contain a large amount of heavy metals and refractory organic pollutants, making the sediment a potential and huge source of internal pollution. When the external environment changes such as agitation of the water body, the pollutants contained in the sediment will be re-released into the water body, causing secondary pollution, directly or indirectly causing poisonous effects on benthic organisms or overlying aquatic organisms, and even through bi...

Claims

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Application Information

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IPC IPC(8): C05G3/00C05G3/04A01G31/00C05G3/80
CPCA01G24/00C05D9/00C05F5/002C05G3/00C05G3/80
Inventor 任瑞霞李楠袁俊山
Owner SHANSHUI LANDSCAPE
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