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Sludge-based charcoal vertical greening light medium and preparation method thereof

A vertical greening and lightweight substrate technology, applied in botanical equipment and methods, planting substrates, culture media, etc., can solve the problems of short fertility duration, high foundation density, and difficult access to raw materials, and achieve low price, nutrient balance, The effect of easy access to raw materials

Inactive Publication Date: 2019-03-29
CHINA GEZHOUBA GRP LVYUAN TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the vertical greening substrates at home and abroad mainly use two or more combinations of natural soil, natural minerals, industrial or agricultural organic waste and other raw materials, but there are generally technical problems such as easy weathering and short duration of fertility; and, the above vertical Although the greening matrix also has a certain degree of looseness, air permeability and drainage, the base density is still relatively high; in addition, some raw materials are difficult to obtain and the cost is high

Method used

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  • Sludge-based charcoal vertical greening light medium and preparation method thereof
  • Sludge-based charcoal vertical greening light medium and preparation method thereof

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preparation example Construction

[0043] The present invention also provides a preparation method of the sludge-based biochar vertical greening light substrate according to the above technical scheme, which includes the following steps:

[0044] a) Mix the sludge-based biochar and the decomposed clinker of agricultural and forestry wastes and grind to obtain the mixture;

[0045] b) Mixing the mixture obtained in step a) with vermiculite, water-retaining agent and slow-release fertilizer to obtain a sludge-based biochar vertical greening light matrix.

[0046] The invention first mixes sludge-based biochar and agricultural and forestry waste decomposed clinker and then grinds to obtain a mixture. In the present invention, the sludge-based biochar and the decomposed clinker of agricultural and forestry waste are the same as those described in the above technical solution, and will not be repeated here.

[0047] In the present invention, the grinding particle size is preferably less than 300 mesh, more preferably less t...

Embodiment 1

[0055] (1) The ratio of raw materials: 35kg of sludge-based biochar, 20kg of clinker of agricultural and forestry waste, 20kg of vermiculite, 3kg of water-retaining agent, and 0.6kg of slow-release fertilizer.

[0056] (2) The sludge-based biochar and the decomposed clinker of agricultural and forestry wastes are uniformly mixed, and then ground to a particle size of less than 200 mesh by a grinder to obtain a mixture.

[0057] (3) The mixture obtained in step (2), vermiculite, water-retaining agent, and slow-release fertilizer are mechanically stirred at a rotation speed of 60 r / min for 45 minutes until they are uniformly mixed to obtain a sludge-based biochar vertical greening light matrix.

[0058] After calculation, the bulk density of the sludge-based biochar vertical greening light substrate provided in Example 1 of the present invention is 486kg / m 3 .

Embodiment 2

[0060] (1) The ratio of raw materials: sludge-based biochar 40kg, agricultural and forestry waste decomposed material 26kg, vermiculite 16kg, water retention agent 2kg, slow-release fertilizer 0.4kg.

[0061] (2) The sludge-based biochar and the decomposed clinker of agricultural and forestry wastes are uniformly mixed, and then ground to a particle size of less than 200 mesh by a grinder to obtain a mixture.

[0062] (3) The mixture obtained in step (2), vermiculite, water-retaining agent, and slow-release fertilizer are mechanically stirred at a rotation speed of 60 r / min for 45 minutes until they are uniformly mixed to obtain a sludge-based biochar vertical greening light matrix.

[0063] After calculation, the bulk density of the sludge-based biochar vertical greening light substrate provided in Example 2 of the present invention is 495kg / m 3 .

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Abstract

The invention provides a sludge-based charcoal vertical greening light medium which is prepared from the following raw materials of components in parts by weight: 35-50 parts of sludge-based charcoal,20-35 parts of forestry and agricultural residue clinker, 5-20 parts of vermiculite, 0.5-3 parts of a water retaining agent and 0.1-0.6 part of a slow release fertilizer. The sludge-based charcoal vertical greening light medium provided by the invention is prepared from the sludge-based charcoal and the forestry and agricultural residue clinker as main raw materials, the raw materials are easy toobtain, low in price, low in cost and free of pollution, and in addition, resource utilization of the sludge-based charcoal is achieved; more importantly, the sludge-based charcoal vertical greeninglight medium comprises components of specific contents, so that a good mutual function is achieved, and the product is good in stability, balanced in nutrient component, long lasting in fertility andlight in weight. Experiment results show that the volume weight of the sludge-based charcoal vertical greening light medium provided by the invention is not greater than 520kg / m<3>, and has a good effect in promoting surviving and growth of vertical greening plants.

Description

Technical field [0001] The invention relates to the technical field of urban greening, in particular to a sludge-based biochar vertical greening light substrate and a preparation method thereof. Background technique [0002] With the rapid expansion of urban construction, land is becoming less and less, and vertical greening can expand urban green space and alleviate problems such as insufficient green space, "heat island effect", urban rainwater runoff, and building energy consumption during the process of urbanization. Urban development has a positive effect; at the same time, vertical greening also increases the amount of urban greenery and coverage, and enhances the three-dimensional effect of greening. It has broad development prospects and is attracting more and more public attention. However, the growth environment and space of vertical greening plants are completely different from the ground. Considering the load-bearing capacity of the carrier and the maintenance cost an...

Claims

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Application Information

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IPC IPC(8): A01G24/10A01G24/15A01G24/20A01G24/28
CPCA01G24/10A01G24/15A01G24/20A01G24/28
Inventor 李化山李旭宁翟晓峰刘吉波洪军罗壮
Owner CHINA GEZHOUBA GRP LVYUAN TECH CO LTD