Soild Waste Management by G Rajkumar

POST YOUR VIEWS ON INCINERATORS

gurjepalli_rk — 2015-10-13 17:53:24 UTC

INCINERATION

gurjepalli_rk — 2015-10-13 18:03:19 UTC

“Incineration is the best way to manage solid waste” – Is it a fact or myth.

gurjepalli_rk — 2015-10-16 00:52:36 UTC

gurjepalli_rk — 2015-10-16 08:08:20 UTC

gurjepalli_rk — 2015-10-20 14:33:38 UTC

Hrithik, Glen and Advay

2015-10-21 06:59:22 UTC

It is a fact as:-

Modern incinerator technology is able to filter out many of the potential harmful emisions in the hot rising flue gases so that they do not escape into the outside environment, including various dioxins

Kaustubh,Tushar,Mustafa Master,Aaron

2015-10-21 07:02:19 UTC

Incineration is a form of waste disposal in which waste is burnt. Incineration converts the waste into ash, flue gas,and heat.

incineration is better as it converts waste into more useful products and burning this waste also generates energy which can be used effectively. if the wrong materials are used then the gases released can be hazardous or toxic and may cause cancer

segregation is the key to incineration.

landfills take up a lot of space which can be better utilized :)

Shivik and Reuben

2015-10-21 07:06:04 UTC

It is a fact, as the the fire consumes everything leaving nothing but ashes. Whereas, in landfills, they consume too much area and the harmful microorganisms spread.

Rajiv Premnath

2015-10-21 07:06:08 UTC

Although incineration is not economically beneficial , it is environmentally beneficial because landfill occupies a huge amount of space which could otherwise be used for better reasons like farming , etc . Incineration burns a lot of waste and then the ash is dumped in pits thus does not take much space and is good for the environment.

As said in the video although landfills save billions of dollars as , it is not preferable because there might be wastes which is harmful to our health which could otherwise be burnt along with the pathogens it carries to form ash .

Aritro. Mustafa A.

2015-10-21 07:06:12 UTC

Incineration is the best way i)to get rid of wastes because it is suitable for disposal of hazardous and biomedical wastes

ii) less time is requirdd for disposal

#GEO4LYF

Glen Neel Karan Aritro and not pranavs ipad

2015-10-21 07:06:37 UTC

Incineration is the best way as Waste destruction in a furnace by controlled burning at high temperatures. Incineration removes water from hazardous sludge, reduces its mass and/or volume, and converts it to a non-burnable ash that can be safely disposed of on land, in some waters, or in underground pits. However, it is a highly contentious method because incomplete incineration can produce carbon monoxide gas, gaseous dioxins, and/or other harmful substances.

Neeraj and Sanket

2015-10-21 07:07:16 UTC

Why is incineration good?

Many incinerators reach temperatures which can destroy most harmful pathogens and chemicals, which is why this method is used for dealing with clinical waste.
Incinerators have a significant impact on reducing the amount of waste going to landfill.

This is why we believe incineration is the best way to manage solid waste.

Vatsal

2015-10-21 07:07:18 UTC

Incineration is the better way to manage waste because it gets rid of poisonous and non biodegradable substances like batteries,circuits and discarded electronics which could damage the land and soil resulting in pollution and soil erosion .

As seen in the video which we watched

Incineration is a much faster and more reliable method and is much healthier for the environment and is a very quick process. Even though landfills have a potential profit of about 7 dollars a pound it is known to get much more energy from the discarded waste in the form of heat energy from the furnace.

However dumping waste in a landfill will serve as a dangerous and unhealthy environment for the breeding of harmful viruses and bacteria. This is why incineration is the preferred method

Ishaan, Apoorva, Pranav and Rohith

2015-10-21 07:09:05 UTC

Incineration, though a very environment friendly method in comparison to landfills, is harmful as it emits harmful emissions. Even the ash produced consumes space and also wastes soil too. However if we develop more advanced technology to clean out the emissions we can use incineration in a constructive manner. Therefore it is a myth.

Sahil and Omkar

2015-10-21 07:10:07 UTC

Incineration is one of the best ways to manage waste as it is effective in disposing of almost all forms of waste. While it is a better method to use than landfills as it doesn't take up a lot of space, incineration is also dangerous as it gives out dangerous gases which can harm us and even damage the environment. But, it is useful when getting rid of high amounts of inorganic waste.

Nishant

2015-10-21 07:13:55 UTC

Incineration is a waste treatment process that involves the combustion of organic substances contained in waste materials. Incineration and other high-temperature waste treatment systems are described as "thermal treatment".Incineration of waste materials converts the waste into ash, flue gas, and heat.

Aritro and Mustafa

2015-10-21 07:19:12 UTC

Incineration is the need of the hour

gurjepalli_rk — 2015-10-21 08:01:25 UTC

Pros and cons of Incineration

gurjepalli_rk — 2015-10-21 08:01:59 UTC

Is incineration the most preferred method

gurjepalli_rk — 2015-10-21 08:02:45 UTC

Role of the Government in installing incinerators

gurjepalli_rk — 2015-10-21 08:03:52 UTC

Impact on society and environment

gurjepalli_rk — 2015-10-21 08:04:48 UTC

Use of incinerators in UAE

gurjepalli_rk — 2015-10-21 08:05:36 UTC

Aaron, Reuben, Shivik and Rajiv

2015-10-21 09:03:57 UTC

Pranav, Ishaan, Apoorva and Rohith (Kuroko bet u didn't notice)

2015-10-21 09:06:00 UTC

Incineration is the need of the hour as currently not all materials can be recycled. Incinerating technology needs to be advanced so as to reduce emissions and waste if so incineration can be a serious contender against (Kuroko) recycling.

Aaron, Reuben, Shivik and Rajiv. -2

2015-10-21 09:07:55 UTC

Hrithik, Mustafa, Vatsal and Advay( who totally contributed)

2015-10-21 09:08:45 UTC

The Governments of India has taken measures such as:

It has taken initiative to help install incinerators like :

In certain states, like Tamil Nadu, UNICEF has helped to build incinerators at schools and also promote simple, single-chamber, iron-drum incinerators for home usage.·

Seizing the market potential of this government directive, corporations have installed mini electric incinerators, such as NapiBurn and Reprocide that cost about Rs. 20,000 in many schools and

colleges in India.

SAAHIL, NEERAJ

2015-10-21 09:12:00 UTC

Most of the activities that we undertake result in waste of one kind or the other. With increasing populace and shrinking resources, managing waste is a significant issue in today’s times. We cannot overlook the issue with reference to the ever-rising landfills especially in the Middle East region. Dubai Municipality understands the gravity of the situation and is doing its bits towards managing the waste effectively. The strategic vision of the Municipality’s waste management department is to achieve excellence through integrated and effective sustainable waste management practices and thereby enhance the environmental and health standards of emirate of Dubai. “The Dubai Municipality has always striven to ensure that the waste management and public cleaning service infrastructure is at par with the best on offer. We are always in the search of bringing in quality products and systems by constantly studying and updating various new technologies and system specifications adopted in different countries,” says Hassan Makki, Director of Dubai Municipality’s Waste Management Division. The Environment professionals from Dubai Municipality participate in various international conferences and seminars with regard to waste management technologies and systems and are careful in the selection of technologies /systems as they must be adaptable to suit the local conditions. The Municipality faces numerous challenges in terms of collection and disposal of solid waste. The higher waste generation in the recent years (i.e. from 2002 to 2008) due to the fast-paced industrial growth, construction boom, increasing population, rapid urbanization, vastly improved lifestyle and unsustainable consumption pattern is posing a serious challenge to the Municipality. However, there was about 15 percent reduction in the waste generation due to the recession last year. However, the intention is to work around the obstacles and take meaningful initiatives towards managing waste effectually. To this end, Dubai Municipality strongly believes in forging strategic partnership with the private sector to meet the various environmental challenges existing locally and globally. In addition, recycling projects have been initiated to cope with increasing waste problems in Dubai. Projects undertaken by Dubai Municipality Recycling, without doubt is an integral aspect of managing waste. In order to cope up with the above challenge, Dubai municipality has forged strategic partnership with the private sectors to establish recycling plants The waste management department has signed a contract with M/s Tadweer Waste Treatment LLC for recycling municipal solid waste, which processes about 4000 tonnes of waste per day. The department has also signed a contract with M/S Emirates Recycling LLC, a plant which is dedicated to the recycling and recovery of the city’s construction and demolition (C&D) waste. The plant which has the capacity of recycling 9.5 million tonnes per year is in construction stage. The initiative continues with the department entering into another contract with M/s Emirates Recycling for waste tyre recycling. The plant has the capacity of processing 1200 tyres per hour and is in the construction stage. With M/s Cyclo, the contract is to build and operate a 30000 tonnes per year waste oil recycling facility and the project is in the construction stage. The waste management department has commissioned a medical waste incinerator last year with the capacity of processing 19.2 tonnes per day. The vertical waste incinerator houses a conventional stoker type furnace. The medical waste incinerator was supplied and executed by the Mitsubishi and ETA group consortium. As more and more landfills fill-up, the option is to turn to waste incineration or trash burning to dispose of the trash that is generated in this country each year. “It has to be an informed decision to use waste incinerators; be it the municipal solid waste or the medical waste incinerators,” says Makki. Dubai has witnessed significant economic growth in the recent years primarily due to its development as a business center in the Middle East region. The Government policies aimed at the development of a diversified economy have transformed Dubai into a fast growing urban region in the Middle East with a large multinational population. These factors have resulted in the typical waste management problems associated with growth, namely rising quantities of wastes generated and also the need for an ever- increasing level and quality of service. In addition to the above, the Municipality collects the used computers and its accessories from the individuals and organizations and refurbishes the same and distributes to charity organizations and schools. Furthermore, the wastemanagement department is working with an international consultant to develop waste minimization strategies for the emirate of Dubai. The draft waste minimization strategy submitted by the consultant is under review by the committee and will be implemented in the future and this will focus more on cleaner production technologies, eco labeling, extended producer responsibility schemes, green procurement policies and environmental management systems. Underground waste management Any waste management initiative ought not to be a quick-fix resolution. Caution has to be practiced so as not to create a waste dump on demarcated sites. Special care needs to be taken to manage the waste arising from the commercial areas on a daily basis and with the advent of underground waste management solutions, the issue can be taken care of in a better manner. The waste management department is currently executing such projects in various commercial districts in Dubai. The cost of the project is about 11 million dirhams. The successful bidder will be responsible for the supply of nine 20 cubic meter capacity underground static compactors which shall include complete designing, engineering, supply, installation and commissioning. Waste container i.e. static compactors are placed underground from where they can be lifted for emptying and the lifting operation is done hydraulically.Ground level workings of the Municipality The waste management department is responsible for collection and treatment of general waste and green/horticultural waste. The collection of solid waste is done by the operations section. The section is divided into various operation units. Each operation’s unit is an aggregate of areas or suburbs. Much of the municipal planning and delivery of services in the city occurs at the community level. Communities are typically portions of an area which are bound by major roads on all sides and a group of communities constitutes an area. Thus, deployment of manpower for street cleaning and waste collection duties (ie, street orderlies) is carried out on a community basis. The Municipal waste collection accounted for 30 percent of the waste collected in the Emirate in 2009. All areas including rural areas such as Hatta (120 kilometers away) have access to waste collection services. The collection and storage system for MSW consists of a well distributed system of over 22, 000 containers. Municipal collection operations in Dubai employ a modern fleet of about 350 vehicles. A semi-automatic collection system using Rear End Loaders (RELs) and Side Loaders are employed. The majority of vehicles are used to collect waste from wheeled bins with 15 tonne payload capacity. In addition to these collection methods, the haul collection system is employed in areas which are densely populated and have higher waste generation such as commercial districts, markets, etc. The haul system consists of a series of strategically located satellite transfer points where waste is collected in skips and stationary compactors and then transported to landfills. Oversized bulky waste is collected from each respective area and transported in trucks for disposal. Teams of wheel loaders and trucks are deployed within areas to facilitate the collection and transportation of this waste to landfills located strategically at 6 places. A municipal policy of encouraging private waste collection for commercial establishments which has been active since the mid 1990s has resulted in the private sector having grown over the last few years both in terms of the number of companies and their service capacity. The private waste collection companies accounted for 70 percent of the general waste collected in Dubai in 2009. They are also involved in the collection of Construction and Development waste and are the sole collection service providers for hazardous waste and medical wastes. The private collection companies are issued the permits by the waste management department and are regulated and monitored. To sum up, the statistical details of the general waste, construction waste and horticulture waste for the year 2008 and 2009 is furnished below:

Mustafa M , Tushar, Nishant and Kaustubh

2015-10-21 09:16:24 UTC

Flue gases pollute the atmosphere and the associated ashes pollute soil and water. To compare the influence of various fuels burned in different installations on the environment, one universal index would be helpful. Such a coefficient, which represents the harmfulness of combustion processes of a particular fuel in a particular installation, is defined in this paper. This coefficient takes into account the composition of the fuel, the thermal efficiency of the installation, the type and process efficiency of creation of harmful compounds in the combustion chamber, efficiency of cleaning devices, ability of emitter to propagate pollutants into the atmosphere, as well as the relative toxicity of various components. Finally methods of calculation of propagation of pollutants in the atmosphere are introduced. All these factors are essential for a reliable assessment and comparison of fuel and installations. An individual coefficient of harmfulness could be calculated for each compound present in the flue gases as well as a total coefficient for all compounds. Each compound created in the combustion processes is the source of many types of environmental impact. It could have significant influences on human health, plants and animals as well as for example on the corrosion process taking place in many different installations. We have to take into consideration that the result of a combustion process could appear in many different places, sometimes distant from the place of the process itself. All these results should be analyzed and introduced into the universal coefficient of “harmfulness” of specific compound. Economic parameters and methods are important and therefore are also introduced into the assessment method presented in the paper. In this way we are able to compare the values of extremely different phenomena such as a human health and corrosion.