Solid waste treatment and disposal

Август 4, 2022

Главная
Английский язык
Solid waste treatment and disposal

Содержание

2. 1. Solid wastes and their types 3. Қалдықтарды жою шаралары 2. Methods of their processing Plan:
3. Solid wastes Solid or semisolid, nonsoluble material (including gases and liquids in containers) such as agricultural
6. Mechanical processing of solid wastes For chemical burners, but not for industrial waste, two types of
7. Disassembly and grinding Allocates the separation and grinding to dry and damp. Solid waste is used
8. Type of force used for crushing
9. Crushers Crushers are machines used for crushing ore concentrators.
10. Two-sided and cone chopper Figure 1. The method of the three-layer crushers: Stage 1; 2-moving jaw;
11. Roller and roller crusher
12. Thermal treatment of solid waste There are three methods of thermal deactivation and utilization of solid
13. Pyrolysis method The pyrolysis is a promising method for the treatment of solid household waste as
14. Chemical treatment of solid wastes Chemical treatment - solid waste treatment with chemical reagents Chemical technology
16. Key Waste Disposal considerations are the major environmental and human health hazards:
18. Скачать презентацию

Слайд 2

1. Solid wastes and their types
3. Қалдықтарды жою шаралары
2.

Methods of their processing

Plan:

3. Waste Management

Слайд 3

Solid wastes
Solid or semisolid, nonsoluble material (including gases and liquids in

containers) such as agricultural refuse, demolition waste, industrial waste, mining residues, municipal garbage, and sewage sludge.

Слайд 4

Слайд 5

Слайд 6

Mechanical processing of solid wastes
For chemical burners, but not for

industrial waste, two types of mechanical treatment are used: crushing and grinding (pressing). It concerns organic and inorganic waste. After crushing, fractionation may be, it can be converted into waste products. Solid materials can be shipped to the required volume, such as shrinkage, shaving, sharpening, cutting, wrapping.

Слайд 7

Disassembly and grinding
Allocates the separation and grinding to dry and

damp. Solid waste is used for mineral removal and grinding machines.
                The disassembly and crushing process is carried out by means of machines called crusher or melnica.
                   The main types of crushing solid waste are divided into the following classes:
crushing, spinning and other agglomerates by crushing and crushing,
crushing grinder, flat roller crusher, flat roller crusher, roller ring, vertical, horizontal, and mattress in the garden;
crushers with impact effect, bulk excimers, disintegrators, drums;
- vapor and colloidal agitators, vibratory reactors;
other excavators; punches, bees.
               For decomposition, the cone with rolling principle, roller excavators and blowing agitators (rolling, rotary, disintegrator) are used

Слайд 8

Type of force used for crushing

Слайд 9

Crushers
Crushers are machines used for crushing ore concentrators.

Слайд 10

Two-sided and cone chopper
Figure 1. The method of the three-layer crushers:

Stage 1; 2-moving jaw; 3-axis centrifugal shaft; 4th roof; 5th front plate; 6 rear plate; Drive 7; Spring 8; 9 Adjustment Tests.

Слайд 11

Roller and roller crusher

Слайд 12

Thermal treatment of solid waste
There are three methods of thermal

deactivation and utilization of solid wastes: laying of pre-prepared wastes in residual-combustion compressors; burning of pre-prepared wastes (released from ballast fractions) with natural fuel in layers of energy or in cement furnaces or of cells; pyrolysis of waste, whether or not pre-prepared. Despite the complexity of the solid household waste, it can be regarded as a fuel dumper (1000-1200 Gcal of heat per year). Thermal treatment of waste does not only neutralize them, but also helps to extract thermal energy from it and to remove metal scrap from it

Слайд 13

Pyrolysis method
The pyrolysis is a promising method for the treatment

of solid household waste as compared with burning waste. This process dramatically reduces the harmful effects of solid household waste on the environment and provides access to products such as gas, oils, resins and so on. With Pyrolysis, waste can be recycled, for example, plastics, oils and tinctures. After pyrolysis there are no biologically active substances, so burial of pyrolysis residues is not harmful to the environment. Due to the high ash density, the amount of residual waste also decreases dramatically. There is no oxidation of heavy metals during pyrolysis. One of the advantages of pyrolysis is the simplicity of storage and transportation of received products, as well as the installation.

Слайд 14

Chemical treatment of solid wastes
Chemical treatment - solid waste treatment with

chemical reagents Chemical technology can be obtained from solid wastes. Chemical methods of solid wastes include alkaline, defrost, crystallization of recyclable substance.

Слайд 15