Environmental-protection ecological vegetation carpet by utilization of municipal sludge

A technology of municipal sludge and vegetation blanket, which is applied in the direction of planting substrate, application, plant protection, etc., can solve the problems of difficult dehydration and treatment, achieve good protection, low cost, and promote the development of agriculture

Active Publication Date: 2016-06-15
CHANGSHA NUOYI ENVIRONMENTAL SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The sludge treated by the sludge dewatering equipment in the sewage treatment plant is a very difficult waste to treat. The moisture content of the sludge is 80%, which is difficult to further dehydrate.

Method used

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  • Environmental-protection ecological vegetation carpet by utilization of municipal sludge

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] The structural diagram of the environmental protection ecological vegetation blanket provided by the present embodiment is as follows: figure 1 As shown, from bottom to top are non-woven fabric layer 1, coconut palm layer 2, seed matrix mixed layer 3 and coconut palm layer 4; the thicknesses are 0.2cm, 0.4cm, 1cm and 0.6cm respectively, and the total thickness is about 2.2cm; The matrix of the seed matrix mixed layer is composed of 60 parts of sludge with a water content of 40%, 25 parts of coconut palm waste, and 15 parts of straw ash. After mixing 60 parts and 25 parts of coconut palm waste, add high-temperature-resistant aerobic strains, treat at 70-80°C for 8 hours to reduce the moisture content of the sludge to about 40%, and then mix with 15 parts of straw ash to obtain . The weight of the seed matrix mixed layer is kept at 3.2-3.5kg / m 2 ; The seeds in the mixed layer of the seed matrix are composed of grass species and shrub species, and the shrub species are b...

Embodiment 2

[0044] The scheme of the present embodiment is basically the same as that of Example 1, the difference being that the shrub mulberry in Example 1 is replaced with ramie or Magnolia multiflora, and the consumption remains unchanged.

Embodiment 3

[0046] The scheme of this embodiment is basically the same as that of Example 1, except that the grass species tall fescue in Example 1 is replaced with ryegrass, and the dosage remains unchanged. The grass seeds in Example 1 are suitable for growing in warm seasons; the grass seeds provided in this example are suitable for growing in cold seasons; they can grow into shape after 1.5 weeks of maintenance, the grass coverage rate can reach more than 85%, and shrubs have small seedlings.

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Abstract

The invention discloses environmental-protection ecological vegetation carpet by the utilization of municipal sludge. The environmental-protection ecological vegetation carpet is a layered structure, and successively comprises a non-woven fabric layer, a first plant fiber layer, a seed matrix mixing layer and a second plant fiber layer from the bottom to the top. The seed matrix mixing layer is composed of seeds and a matrix, thickness is 0.7-1.1 cm, dosage of seeds is 20-30 g / m<2>, and dosage of the matrix is 2.8-3.8 kg / m<2>. The matrix comprises the following ingredients (by weight): 60 parts of sludge with 30-50% of water content, 20-30 parts of coconut fibre waste and 10-20 parts of straw ash. The environmental-protection ecological vegetation carpet is prepared from wastes, is low-cost and has strong environmental protection property. The environmental-protection ecological vegetation carpet is relatively thin in thickness and can be stitched by a pin cushion mode. Structural power of the environmental-protection ecological vegetation carpet is strong. The environmental-protection ecological vegetation carpet is convenient for transport and construction, and has enough conservation ability of water and soil during the early stage of construction so as to effectively prevent water and soil loss during the early stage of construction. Grass seeds and scrub species can grow in the matrix, roots can be greatly attached to the matrix and soil, and protective property is good.

Description

technical field [0001] The invention relates to an environment-friendly ecological vegetation blanket that can utilize municipal sludge. Background technique [0002] At present, reinforced concrete structures are mostly used for slope protection in areas such as highway slope greening, mountain slope reinforcement treatment, river slope protection, and artificial lake slope protection, which is not conducive to ecological restoration. In mine ecological restoration and other ecological slope protection and other governance projects There is an increasing need to use environmentally friendly ecological products. The sludge treated by the sludge dewatering equipment in the sewage treatment plant is a very difficult waste to treat. The moisture content of the sludge is 80%, which is difficult to further dehydrate. Contents of the invention [0003] The technical problem solved by the invention is to use the sludge after preliminary dehydration of the sewage treatment plant ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01C1/04A01G13/02A01G9/10
CPCA01C1/044A01G13/0268A01G24/00
Inventor 张子云陈全军颜勇志朱磊古凌周炯熙艾叶平杜伟雄
Owner CHANGSHA NUOYI ENVIRONMENTAL SCI & TECH
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