Waste Management

Biogas waste management

Published

13 years ago

February 27, 2012

The decomposition of organic matter by biological activity produces gases (on average between 100 and 400 m3 per tonne of household waste and at a rate of between 5 and 15 m3 per tonne and per year, for US-type landfills) which can have harmful effects on the environment and the health of the population.

They must therefore be collected and processed. Once collected, the gases produced must be burned or used for energy purposes. When the depth of the landfill exceeds 8 meters, it is necessary to pump the gases (e.g.: centrifugal pumps from 150 to 500 m3/h) in order to limit the accumulation within the wells and also increase their radius of action.

Regulating pumping at each well, by controlling the opening of the valve at the wellhead, limits the entry of air into the waste mass (risk of flammability) and maintains a relatively low methane supply. constant at the level of the biogas treatment devices (maximum 20% variation compared to the optimal operating conditions).

When energy recovery is not possible due to insufficient flow or unsatisfactory quality (i.e. when the methane content in the biogas is less than 35%), it is simply burned in the air. free in a flare. The flare is a device for eliminating biogas with an excess of air of 10 to 15% automatically regulated. The particular design isolating the flame in a cylindrical combustion chamber avoids disturbances linked to atmospheric conditions and the formation of colder zones.

Ideally, the operating temperature is 150 to 250°C higher than the ignition temperature of the gas (i.e. 600°C for methane). In general, the flare operates at more than 1000°C with a peak at 1200°C for 6 seconds or at 1200°C with a residence time greater than 0.3 seconds allowing the decomposition of complex and toxic organic molecules ( aromatic, chlorinated, sulphurous, etc.). Visit here to read Philadelphia Recycling Blueprint.

It is also equipped with a self-ignition system and continuous monitoring of its operation. It should be noted that, even if the biogas is recovered for energy, the presence of a flare is essential on the site, in particular to supplement the recovery systems in the event of a stoppage or overload.

Knowing that biogas rich in methane has a calorific value of approximately 4 to 5 kW per cubic meter, equivalent to that of half a liter of heating fuel, it seems interesting to be able to valorize it. Three possibilities are generally possible: combustion in a boiler or use as fuel in a gas engine or a gas-steam turbine. The first possibility is by far the least expensive and the easiest to implement if there are local opportunities to use the calories produced (in the form of steam).

Transporting biogas is in fact not very profitable because it is very corrosive and its calorific value is low (it often has to be mixed with natural gas for the burners to work properly).

To enable biogas fueling, internal combustion engines most often, or sometimes diesel or multi-fuel, (of the order of 400 kW to 2 MW) have been adapted in order to compensate for the lack of lubricating properties of the mixture and the risks of corrosion. Using a gas containing molecules that can be toxic, particular attention must be paid to engine tuning in order to guarantee a certain quality of the exhaust gases (absence of sulfur compounds, dioxins, etc.).

It is the same for the turbines, even if the temperatures reached in the combustion chamber are normally higher than 1800°C. The advantages of gas turbines are in terms of weight and the frequency of machinery maintenance operations. It is important to note that the recovery cannot cover all of the biogas produced within the landfill.

In general, the effective recovery rate of methane is estimated at between 40 and 60%. The rest is biogas, the methane content of which is too low to allow the operation of an engine or a boiler without additional fuel.

That said, an optimum can be defined between the energy loss at the flare during the incineration of lean biogas and the benefit to be generated by recovering it in a mixture with another fuel such as natural gas. Added to this are also the prospects for cogeneration by diversifying energy flows: steam, electricity, mechanical energy and hot water by recovering heat from combustion gases.

Pollution

Waste Management Issues in the State of Nevada

Published

1 year ago

June 13, 2023

michelle

Nevada, known for its stunning landscapes and vibrant cities, faces several significant pollution and waste management challenges. As a state with a diverse range of industries, including mining, tourism, and agriculture, Nevada must address the environmental consequences of these sectors (check https://ndep.nv.gov/nevada-recycles/government-sustainability/sustainability-action-across-nevada). Below we delve into the pollution issues affecting the state and explores the efforts being made towards effective waste management in Nevada.

Air Pollution

Nevada experiences significant air pollution, primarily due to industrial activities, vehicle emissions, and dust storms (see https://theprophetblog.net/how-to-improve-waste-management-in-reno/). Las Vegas, the state’s most populous city, often grapples with poor air quality. The mining industry, prevalent in Nevada, also contributes to air pollution through emissions of dust, sulfur dioxide (SO2), and volatile organic compounds (VOCs).

Water Pollution

Water pollution is a critical concern in Nevada, particularly in relation to mining activities. Mining operations produce contaminants such as heavy metals and cyanide, which can enter water bodies, affecting both surface water and groundwater. The abandoned and inactive mines across the state pose a threat of water pollution if proper measures are not taken. In addition to mining, urban development and agricultural practices contribute to water pollution through the discharge of untreated wastewater and the use of fertilizers and pesticides.

Waste Management Challenges

Nevada faces significant challenges in waste management. The state’s growing population and thriving tourism industry generate substantial amounts of municipal solid waste (MSW). The proper disposal and management of this waste are crucial to prevent environmental harm. However, inadequate waste management infrastructure, including recycling and composting facilities, poses obstacles. Consequently, a considerable amount of waste is disposed of in landfills, which raises concerns about the limited capacity of these sites and their long-term environmental impact.

Hazardous Waste

The generation and proper handling of hazardous waste are vital to safeguard public health and the environment. Nevada’s mining industry produces a substantial amount of hazardous waste, including chemicals and heavy metals. Furthermore, other industries, such as manufacturing and healthcare, also contribute to hazardous waste generation. It is crucial to enforce stringent regulations and promote responsible disposal practices to prevent the contamination of soil, water, and air.

Recycling and Waste Reduction Efforts

Recognizing the importance of waste management, Nevada has taken steps to promote recycling and waste reduction (check this link https://lasvegasnvdumpsterrental.com/five-ways-to-reduce-waste/). The state has implemented recycling programs and initiatives, aiming to increase public awareness and participation. Efforts are being made to expand recycling infrastructure, enhance curbside recycling services, and establish drop-off centers. Education campaigns and community outreach programs are also being conducted to encourage responsible waste disposal and recycling practices.

Sustainable Practices in Tourism and Agriculture

As tourism and agriculture play significant roles in Nevada’s economy, it is crucial to adopt sustainable practices within these sectors. Regarding the tourism industry, projects are developped to promote eco-friendly initiatives like green and energy-efficient buildings, water conservation operations, and more use of renewable energy sources. Similarly, sustainable agricultural practices, including water management strategies, reduced chemical usage, and soil conservation methods, are being encouraged to minimize the environmental impact of farming activities.

Government Regulations and Partnerships

To address pollution and waste management challenges effectively, Nevada’s government has implemented regulations and formed partnerships. Stringent environmental regulations are in place to control air and water pollution, hazardous waste management, and proper disposal of waste. Collaborations with environmental organizations, academic institutions, and industry stakeholders aim to develop sustainable solutions and advance waste management technologies.

Junk disposal services in Las Vegas

Junk disposal services play a vital role in addressing the waste management needs of a bustling city like Las Vegas. With its vibrant tourism industry and a growing population, Las Vegas generates a significant amount of junk and bulky waste. Junk disposal services in the city provide convenient and efficient solutions for residents, businesses, and visitors to manage and dispose of unwanted items responsibly. These services typically include junk removal, hauling, and disposal of items such as furniture, appliances, electronics, construction debris, and general household waste. They offer a hassle-free alternative to traditional waste disposal methods, saving individuals time and effort while ensuring proper handling and disposal of junk in compliance with local regulations.

In Las Vegas, junk disposal services are often equipped with trained professionals and appropriate equipment to handle a wide range of junk removal tasks. Whether it’s a small residential cleanout or a large-scale commercial project, these services are equipped to handle jobs of various sizes and complexities. They provide on-demand services, allowing customers to schedule pickups at their convenience, and some even offer same-day or next-day service options. By utilizing junk disposal services, individuals and businesses in Las Vegas can effectively declutter their spaces, contribute to a cleaner environment, and support responsible waste management practices in the city.

Pollution and waste management issues in Nevada require ongoing attention and concerted efforts from various stakeholders. By focusing on air and water pollution reduction, enhancing waste management infrastructure, promoting recycling, and implementing sustainable practices, Nevada can mitigate the adverse effects of pollution and preserve its natural resources for future generations. The collective responsibility of the government, industries, communities, and individuals is crucial in creating a cleaner and more sustainable Nevada.

Waste Management

Renting A Dumpster: Understanding Your Options

Published

7 years ago

March 10, 2018

michelle

Even if you’ve hired a dumpster rental agency to haul away and recycle your waste, you haven’t taken the time to familiarise yourself with the various dumpster types available. You should be aware that dumpsters come in a variety of sizes, weight capacities, and transportation methods. Consider the following information if you’re planning to hire a dumpster in Atlanta: types of dumpsters accessible in the industry

Dumpsters For Business Use

These are medium-sized dumpsters with a maximum 8-yard container capacity. Rear-loading dumpsters and front-loading dumpsters are the two common styles of commercial dumpsters. When it comes to loading and dumping, these two dumpsters are very different. Front spikes of the dump truck could be inserted into slots cut into both sides of a bin on front loaders. The dumpsters range in size from 2 yards – 8 yards and are thrown into the vehicle from the front. Because of their slanted form, they are extremely convenient to use.

However, the rear loader has a tilted back & two extending poles for added versatility and convenience. A winch & sled system dumps its contents. As opposed to an overhead action, the truck physically clamps onto back loader and afterwards tries to lift the dumpster into the air is for rubbish to fall into. Because of the incline of the back, it is more difficult to dispose of rubbish in rear-load dumpsters. They can usually handle more waste, but because they are taller, they can squeeze into tighter locations. Also read our article which is about the role of battery storage

Dumpsters In The Roll-Off

The roll-off rental dumpster has a bigger capacity, and containers up to 40 yards in length are available for hire. Dumpsters can be loaded using either a robotic arm or a winch and sled, and you’ll see both of these methods in action when you visit a dumpster company. Construction, landscaping, and remodelling are all wonderful uses for these dumpsters. Garbage can be stored in these bins for quite some time before they need to be cleaned out. You’ll be able to keep working on your project with the support of this.

Specialty Waste Disposal

These dumpsters are towed behind a truck by a chain attached to their rubber tyres. From 10 to 25 yards, they come in various styles and colours. It is common for specialty dumpsters to be towed by a conventional vehicle with rubber tyres. These dumpsters are typically available in sizes ranging from 10 – 25 yards. It is best to use these dumpsters for modest to medium-sized home remodelling jobs. In addition to being more discrete, this dumpster rental near Atlanta can get to even the most challenging locations.

Compactors

Using a metal blade can compress rubbish, compactors are trash bins that are totally sealed. Sizes range from two yards to forty yards. When compared to traditional garbage cans, these have a slew of advantages.

Can aid in reducing costs.
Keeping trash from blowing away keeps foul odour at bay.
Don’t collect as many things

When you use their services, you can pick from a variety of dumpster rental options. Whenever you require trash removal services, M&M waste Dumpsters is here to assist you. They can assist you with anything from a roll-off container to a front-loader, depending on your needs.

Waste Management

Five Things To Keep In Mind When Trying To Find A Dumpster Rental Company

Published

7 years ago

February 12, 2018

michelle

If you’re operating a company or own a home, trash collection is a crucial part of ensuring a smooth operation. It’s critical to have a location where you can dispose of trash and have it picked up by a service. Businesses and homeowners alike can benefit from dumpster rentals, which are a cost-effective solution to garbage management. Avoiding delivery or trash pick-up hassles, accidents, and other unexplained costs can help you get more work done faster.

Getting rid of waste from homes and companies is a major worry for many people nowadays. Average daily rubbish output is four pounds for the average person. When looking for a dumpster rental business, consider the following things to help you make an informed decision:

Waste

If you’re going to be disposing of rubbish on a regular basis, it’ll be helpful to know what kind of dumpster rental service you need. If you rent a dumpster from a certain company, there may be restrictions on what you can put in it. An expert business should have a strategy for dealing with hazardous and non-hazardous garbage after rubbish collection. Based on the sort of garbage collected from your house or business, dumpster rental companies may charge different fees.

Closeness To Your Workplace And Home

Another thing to think about is how close the dumpster rental company is to your residence or place of business. An out-of-town trash hauler might not show up on schedule, and you can end up paying more because of the added expense of travel. In order to receive prompt and high-quality service, you should choose a dumpster rental provider located close to your homes and businesses.

Proper Methods Of Disposal

By recycling the waste, the waste management firm should use proper waste disposal methods. When looking for a dumpster rental firm, ask about their experience with proper waste disposal. A well-established trash management firm will be able to handle the waste effectively. A garbage management business that stresses recycling is ideal for your needs.

The Size Of A Dumpster

When looking for a dumpster rental, one of most important factors to take into account is the container’s size. You may come across containers of various sizes, and you’ll need to select the one that can accommodate a wide range of waste. The correct container size for the project should be available from the dumpster rental agency you choose. There is no use in paying for dumpster space that you will never use just because it is impossible to anticipate how much trash that need to get rid of.

Accurate Tools And Equipment

Waste removal services have had the necessary tools and equipment to complete any trash disposal project. Getting rid of some dumpsters can necessitate bringing in heavy equipment, depending on their size. Choosing a dumpster rental firm that can relocate the roll-off dumpster you provide with minimal impact on the surrounding area is a top priority.

Choosing a dumpster rental company may seem like a daunting undertaking for homeowners & business owners alike. Prior to making a dumpster rental appointment, make sure you have all of the necessary information, such as the amount of available space and the delivery and pick-up schedules, sorted out. Selecting dumpsters for your project is made easier if you keep these guidelines in mind. Good dumpster rental companies, on the other hand, provide guidance to their customers in selecting the most suitable dumpster container.