Unlock instant, AI-driven research and patent intelligence for your innovation.

High-temperature composting process for waste by the forced combination with natural ventilation

A technology of high-temperature composting and natural ventilation, which is applied to organic fertilizers, fertilization devices, climate change adaptation, etc., to achieve the effects of simplifying equipment, good heat preservation effect, and avoiding overcooling

Active Publication Date: 2007-01-10
TONGJI UNIV
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a high-temperature composting method for solid waste that reduces ventilation energy consumption, reduces heat loss of the compost body, and simultaneously solves the problem of composting tail gas deodorization

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • High-temperature composting process for waste by the forced combination with natural ventilation
  • High-temperature composting process for waste by the forced combination with natural ventilation
  • High-temperature composting process for waste by the forced combination with natural ventilation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0014] see figure 1 , 2 , 3. First determine the cross-sectional size of the pile: in this embodiment, the height is about 2m, the bottom width is 5-7m, and the side slope is 1:1. The spacing between stacks is 1-1.5m. The volume of waste composted per unit area per day is 1.1-1.2m 3 / m 2 , The composting period is 20 to 30 days, and the size of the composting site is determined accordingly. For example: the volume of waste processed daily is 50m 3 / day, the composting cycle is 25 days, then the required site area = (50m 3 / day×25days)÷1.2m 3 / m 2 =1042m 2 , this area does not include the site area required for pretreatment of waste and finishing treatment of decomposed compost. Next, carry out site anti-seepage and drainage treatment: lay concrete on the composting site for anti-seepage treatment, and the ground bearing capacity after treatment should be ≥ 0.5Mpa. Cover drainage ditches are set up around the site and along the two sides of the bottom aeration layer,...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
thicknessaaaaaaaaaa
particle diameteraaaaaaaaaa
thicknessaaaaaaaaaa
Login to View More

Abstract

The present invention is combined forced ventilation and natural ventilation process of producing high temperature compost with solid waste. The technological process includes determining the size of the field and compost, performing antiseepage and draining treatment of the field, laying graded broken stone to form bottom ventilation strip layer, setting vertical ventilation pipes on the ventilation layer, piling garbage to form heaps with trapeziform section, covering the heaps with plastic soaked cloth, forced ventilation intermittently with sucking ventilator until the heap temperature reaches 55 deg.c, and naturally ventilating until the heap temperature lowers to below 40 deg.c to form compost. The present invention has homogeneous compost temperature, low power consumption and low cost, and is suitable for producing compost with various kinds of solid waste.

Description

technical field [0001] The invention relates to the technical field of high-temperature composting of stacked solid waste, specifically refers to the composting of domestic garbage, urban sewage plant sludge, agricultural straw, food processing waste, poultry manure, oil field waste, etc. The solid organic waste is used as land and becomes a resource after being harmless. Background technique [0002] The process of composting technology can be divided into two basic types: fermentation bin type and non-fermentation bin type. Fermentation bin type composting process uses composting reactors of various geometric shapes as the space for composting and fermenting waste. Lower the required temperature (55°C) and keep it for more than 5 days. However, special equipment is generally required for the entry and exit of materials, and the cost of the fermentation bin itself is relatively high, so it is suitable for large-scale composting projects with a ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C05F9/04C05F17/00
CPCY02A40/20Y02W30/40
Inventor 何品晶邵立明宗兵年李国建章骅
Owner TONGJI UNIV