Zhengzhou GEP Ecotech Co Ltd.
Source: Zhengzhou GEP Ecotech Co Ltd.
5 Recognized Solid Waste Management Methods
There are different ways of solid waste management. The following are some of the recognized ways:
1. Sanitary Landfill This is the most popular solid waste disposal method used today. Garbage is basically spread out in thin layers, compressed and covered with soil or plastic foam.
Modern landfills are designed in such a way that the bottom of the landfill is covered with an impervious liner, which is usually made of several layers of thick plastic and sand. This liner protects the groundwater from being contaminated because of leaching or percolation.
When the landfill is full, it is covered with layers of sand, clay, topsoil and gravel to prevent seepage of water.
Advantage: If landfills are managed efficiently, it is an ensured sanitary waste disposal method.
Constraint: It requires a reasonably large area.
2. Incineration This method involves the burning of solid wastes at high temperatures until the wastes are turned into ashes. Incinerators are made in such a way that they do not give off extreme amounts of heat when burning solid wastes.
Incinerators that recycle heat energy through furnace and boiler are called waste-to-energy plants. These waste-to-energy systems are more expensive to set up and operate compared to plain incinerators because they require special equipment and controls, highly skilled technical personnel, and auxiliary fuel systems.
This method of solid waste management can be done by individuals, municipalities and even institutions. The good thing about this method is the fact that it reduces the volume of waste up to 20 or 30% of the original volume.
Advantage: The volume of combustible waste is reduced considerably by burning waste. In the case of off-site pits, it is an appropriate method to minimize scavenging.
Constraint: It can cause smoke or fire hazard and also emits gaseous pollutants.
3. Recovery and Recycling Recycling or recovery of resources is the process of taking useful but discarded items for the next use. Plastic bags, tins, glass and containers are often recycled automatically since, in many situations, they are likely to be scarce commodities.
Traditionally, these items are processed and cleaned before they are recycled. The process aims at reducing energy loss, consumption of new material and reduction of landfills. The most developed countries follow a strong tradition of recycling to lower volumes of waste.
Advantage: Recycling is environmentally friendly.
Constraint: It is expensive to set up, and in most emergencies, there is limited potential.
4. Composting Due to a lack of adequate space for landfills, biodegradable yard waste is allowed to decompose in a medium designed for the purpose. Only biodegradable waste materials are used in composting.
It is a biological process in which micro-organisms, specifically fungi and bacteria, convert degradable organic waste into substances like humus. This finished product, which looks like soil, is high in carbon and nitrogen. Good quality environmentally friendly manure is formed from the compost that is an excellent medium for growing plants and can be used for agricultural purposes.
Advantage: Composting is environmentally friendly as well as beneficial for crops.
Constraint: It requires intensive management and experienced personnel for large scale operation.
5. Pyrolysis This is a method of solid waste management whereby solid wastes are chemically decomposed by heat without the presence of oxygen. It usually occurs under pressure and at temperatures of up to 430 degrees Celsius. The solid wastes are changed into gasses, solid residue of carbon and ash and small quantities of liquid.
Advantage: This will keep the environment clean and reduce health and settlement problems.
Constraint: The systems that destroy chlorinated organic molecules by heat may create incomplete combustion products, including dioxins and furans. These compounds are highly toxic in the parts per trillion ranges. The residue it generates may be hazardous wastes, requiring proper treatment, storage, and disposal.
To summarize, proper solid waste management is an integral part of environmental conservation that should be observed by both individuals and companies globally.
How to Recycle Construction Materials
Many valuable materials end up in a landfill. Most can still be reused in some way. Below you’ll find the most common construction materials and their uses after the recycling process: Glass – used for different purposes including the manufacture of concrete and insulation;Wood – mainly recycled for the creation of energy;Bricks, concrete and stones – the materials are crushed and used to produce new asphalt and concrete;Metal – recycling metal is much more energy efficient than...
New Authorised Tana Distributor for Japan
Tana and Fujitex have signed an agreement for the distribution of TANA landfill compactors and TANA mobile waste shredders in Japan.Tana Oy is expanding its distribution network and offers now the best recycling machines also in Japan. Tana Oy and Fujitex Co., Ltd have signed a dealership agreement that covers the distribution of TANA recycling machines.Catch the full Tyre & Rubber Recycling story here.
Saint-Gobain installs gypsum recycling technology at Arkansas plant
Building materials manufacturer Saint-Gobain, with North American headquarters in Malvern, Pennsylvania, through its building products subsidiary, CertainTeed LLC, Malvern, has installed recycling technology at its gypsum wallboard plant in Nashville, Arkansas. According to a news release by Saint-Gobain, the technology will allow the plant to recycle 65,000 tons of materials annually that otherwise would have been sent to a landfill. The project represents a $1.3 million investment from CertainTeed...
Tana Oy is expanding their distribution network and offers now the best recycling machines also in Japan. Tana Oy and Fujitex Co.,Ltd have signed a dealership agreement that covers the distribution of TANA recycling machines and landfill compactors to Japanese markets. Fujitex holds a strong position of nationwide sales and logistics network all over Japan. TANA machines are an excellent addition to Fujitex’s portfolio as their mission is not only to sell the machines, but to provide the most suitable...
Waste Connections touts $175M in Q1 acquisitions, ‘robust pipeline’ for 2022
The company discussed a strong start to the year due in part to solid waste pricing and revenues from its resource recovery sector. Economic picture: CEO Worthing Jackman said during a Wednesday earnings call the company is “extremely pleased” with its first quarter results despite inflationary pressures and supply chain and labor challenges. He predicts the company will stay on target to meet or exceed its 2022 financial outlook due to factors such as solid waste pricing growth and investment in...
No comments were found for What Are the Ways of Solid Waste Management?. Be the first to comment!
Environmental XPRT is a global environmental industry marketplace and information resource. Online product catalogs, news, articles, events, publications & more.
Environmental XPRT is part of XPRT Media All Rights Reserved. Terms Privacy
Our sites: Agriculture XPRT Energy XPRT Medical XPRT XPRT