Method of improving saline-alkali soil to plant plants by using prepared sludge nutrient substrate

A nutrient matrix and sludge technology, which is applied in the field of sludge treatment and saline-alkali land treatment, to achieve the effects of improving conversion efficiency, fermentation efficiency, and hydrolysis efficiency

Inactive Publication Date: 2017-10-24
LUOYANG MAOSHENG BIOTECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In view of the above problems, the object of the present invention is to provide a method for improving saline-alkali land by using prepared sludge nutrient matrix to plant plants, to solve the problems of soil optimization and sludge treatment in saline-alkali land, and to organically combine the two, in full While using sludge waste to solve environmental problems, it also provides favorable conditions for agricultural and forestry production

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  • Method of improving saline-alkali soil to plant plants by using prepared sludge nutrient substrate

Examples

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Effect test

Embodiment 1

[0024] A preparation method of sludge nutrient matrix, comprising the following steps:

[0025] Take the sludge that has undergone primary treatment from the sewage treatment plant, add 2.5% sodium citrate, 11% humic acid and 1% potassium chloride to the sludge, stir well and let it stand for 1-2 hours , suction and filter the surface moisture, and then dehydrate until the moisture content is 75%-80%, to obtain pretreated sludge; place the pretreated sludge in a fermentation tank at 60°C for the first fermentation for 5 days, and obtain the first fermentation material; Mix the first fermentation material, sludge and high-temperature composting fermentation bacteria liquid at a volume ratio of 10:25:3, stir evenly, and conduct a second fermentation at 85°C for 4 days to obtain the second fermentation material; Mix the fermented material, peat and compost fermentation liquid at room temperature at a volume ratio of 15:15:2, stir evenly, and ferment for the third time at 38°C for...

Embodiment 2

[0029] A preparation method of sludge nutrient matrix, comprising the following steps:

[0030] Take the sludge that has undergone primary treatment from the sewage treatment plant, add 3.0% sodium citrate, 10% humic acid and 2% potassium chloride to the sludge, stir it evenly and let it stand for 1-2 hours , suction and filter the surface moisture, and then dehydrate until the moisture content is 75%-80%, to obtain pretreated sludge; put the pretreated sludge in a fermentation tank at 58°C for the first fermentation for 5.5 days, and obtain the first fermentation material ; mix the first fermentation material, sludge and high-temperature composting fermentation liquid in a volume ratio of 10:25:3, stir evenly, and conduct a second fermentation at 82°C for 4.5 days to obtain the second fermentation material; Mix the secondary fermentation material, peat and normal temperature composting fermentation broth at a volume ratio of 15:15:2, stir evenly, and ferment for the third tim...

Embodiment 3

[0034] A preparation method of sludge nutrient matrix, comprising the following steps:

[0035] Take the sludge that has undergone primary treatment in the sewage treatment plant, add 4.0% sodium citrate, 9% humic acid and 3% potassium chloride to the sludge, stir it evenly and let it stand for 1-2 hours , suction and filter the surface moisture, and then dehydrate until the water content is 75%-80%, to obtain pretreated sludge; place the pretreated sludge in a fermentation tank at 55°C for the first fermentation for 6 days, and obtain the first fermentation material; Mix the first fermentation material, sludge, and high-temperature composting fermentation bacteria liquid at a volume ratio of 10:25:3, stir evenly, and conduct a second fermentation at 80°C for 5 days to obtain the second fermentation material; Mix the fermented material, peat and compost fermentation liquid at room temperature at a volume ratio of 15:15:2, stir evenly, and ferment for the third time at 35°C for...

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Abstract

The invention relates to a method for improving saline-alkali soil to plant plants based on a prepared sludge nutrient substrate, and belongs to the technical field of sludge treatment and saline-alkali land treatment. The method comprises the steps that on the basis of the prepared sludge nutrient substrate, firstly, the sludge nutrient substrate is spread in the surface layer of the saline-alkali soil, and then ploughing, soil preparing and digging of parallel planting ditches are conducted; then the sludge nutrient substrate, a water retaining agent and crushed plant waste are mixed evenly, and sludge migrated soil is obtained; the sludge migrated soil is applied to the bottoms of the planting ditches to form the a migrated soil layer, plant seeds are sowed in the migrated soil layer, the upper side of the migrated soil layer is covered with non-woven fabric, and then regular irrigation and routine management are carried out. The method achieves the purposes of soil optimization and sludge treatment in saline-alkali land, soil optimization and sludge treatment are organically combined, environmental problems are solved by making full use of sludge wastes, and favorable conditions are provided for agro-forestry production.

Description

technical field [0001] The invention relates to the technical field of sludge treatment and saline-alkali land treatment, in particular to a method for improving saline-alkali land by using prepared sludge nutrient matrix to grow plants. Background technique [0002] The salt contained in the saline-alkali soil affects the normal growth of crops. All kinds of saline-alkali soil are formed under certain natural conditions. Redistribution, so that the salt gradually accumulates on the soil surface in the salt-gathering area. Saline-alkali soil has less organic matter content, low soil fertility, poor physical and chemical properties, and many anions and cations that are harmful to crops, making it difficult for crops to promote seedlings. The general improvement methods of saline-alkali land are as follows: (1) Natural enclosure: Although the investment is less, it takes a long time; (2) Physical method improvement: such as irrigation and drainage, flushing and desalination, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/02C05G3/04C05F17/00A01B79/02A01C21/00A01G1/00A01G9/10C05G3/60C05G3/80
CPCA01B79/02A01C21/005C05D1/02C05F17/00C05G3/60C05G3/80C05F5/00C05F5/006C05F5/008C05F7/00C05F11/00C05F11/02C05F11/08Y02W30/40
Inventor 杨志学杨元涛杨阁阁
Owner LUOYANG MAOSHENG BIOTECH
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