Waste Management

Everything You Need To Know About Waste Colonialism

Waste colonialism refers to the disposal of hazardous waste by high GDP countries into low GDP countries. The term was first recorded in 1989 at the United Nations Environmental Basel Convention when African nations raised concerns over the issue.

Apart from hazardous waste, high GDP countries have also been exporting their plastic and paper waste to poorer countries in a bid to cut down on their carbon emissions from incineration of the waste. These poor countries often lack effective waste management systems.

Until January 2018, about half of the world’s plastics and paper products were being dumped and recycled in China. However, in a bid to protect its environmental interests and the health of its populace, China banned imports of plastics and paper. This ban was also propelled by the mixing of hazardous wastes in the solid waste imported by China.

This left countries in the West struggling with the build-up of plastic and paper waste, as they scrambled to look for new markets for the waste. In 2020, a huge consignment of 141 containers filled with plastic waste being exported to Turkey from Germany was rejected by authorities as they had just banned the importation of mixed plastic waste.

 

Exporters and Importers of Plastic Waste – Statista

The problem

High GDP countries are the world’s largest producers of waste yet some of them are labelled as the world’s top recyclers. In 2017, Germany was named the world’s top recycler by the World Economic Forum. However, according to 2021 data from Statista, Germany was the leading exporter of plastic waste in the European Union.

Companies in the fossil fuel industry also continue to lobby for more plastic manufacturing and have set their eyes on Africa as the next market. During the US-Kenya trade negotiations in 2020, the American Chemistry Council – an industry group representing the world’s largest petrochemical companies, proposed Kenya as a future supply hub for US-made chemicals and plastics to other African countries.

If this deal had come to fruition, Kenya would have imported up to 500 million tonnes of plastic waste per year from the US. However, Kenya has neither the recycling capacity nor the storage capacity for this waste. Not only would this have led to more plastic waste in landfills, but Kenya would have had to lift one of the world’s strictest ban on single-use plastics.

High GPD countries generate twice as much waste per capita in comparison to low GDP countries. Lower-income countries already face challenges with their own solid waste and when higher-income countries export their solid waste, they are only exacerbating the global environmental risks brought on by plastic waste.

Who is fighting back and how?

In Asia, a historic leap against waste colonialism was made in 2022 when the US-based organization Ocean Conservancy (OC), retracted its 2015 report that blamed the global plastic waste problem on the continent. This was due to the fact that the report ignored the role played by countries in North America and Europe in plastic waste production. In addition, the report also proposed garbage incineration as a solution which led to years of greenhouse gas emissions.

To make up for its past actions, the OC has partnered with the Global Alliance for Incinerator Alternatives (GAIA) to begin a community- and sector-based restorative process. The restorative process prioritizes on plastic reduction policies.

In Africa, the Global Alliance for Incinerator Alternatives (GAIA) and the Break Free from Plastic (BFFP) Africa continue to create awareness on the impact of waste colonialism. During Africa Day 2022, the two organizations together with 69 individuals and 136 organizations released a public statement calling on African leaders to stop waste colonialism in Africa.

What more can be done?

The GAIA + BFFP Africa public statement made some recommendations to what can be done in the fight against waste colonialism. Although these recommendations were made to African governments, they are applicable to all developing nations. The recommendations are:

 

  • Prevention of plastic waste dumping
  • Protection of existing and new legislation upholding right to a safe, clean and healthy, toxic-free environment
  • Exercising their right to refuse shipments of hazardous and plastic waste as provided by the Prior Informed Consent (PIC) Procedure and Information Exchange of the UNEP + Rotterdam Convention
  • Enforcing existing legislations that restrict and prohibit waste imports like the Basel and Bamako conventions
  • Adoption of national systems that are inclusive of waste pickers in waste management decision-making processes
  • Investing in ongoing discussions around global plastic treaty at the local and regional levels to address problems in the entire plastic value chain

What do you think of waste colonialism, let us know in the comment section.

Biomedical waste Waste Management

WHAT HAPPENS WHEN MEDICAL WASTE LITTERS THE ENVIRONMENT?

Medical waste, also known as biomedical waste, refers to waste generated in the process of diagnosis, treatment, immunization, or research. Although region-specific, the impact of medical waste on the environment is one that cannot be ignored. Medical waste is a source of land and water contamination especially if it is not rendered harmless before disposal.

About 85% of the waste generated from health care centres is non-hazardous. However, the remaining 15% is considered hazardous material that is either toxic, infectious, or radioactive according to WHO. Annually, approximately 16 billion injections are administered globally but many needles and syringes are not disposed of properly.

Although it is considered a method of medical waste disposal, open burning and incineration of health care waste can result in the emission of furans, dioxins, and particulate matter. Medical waste must be properly contained, segregated, and incinerated using the right equipment to prevent any adverse health and environmental impacts. For instance, the unintended release of biological hazards like drug resistant microorganisms into the environment could potentially harm the public.

 

MedPro Disposal (https://bit.ly/3MQeK1c)

TYPES OF MEDICAL WASTE

Infectious waste – waste that is contaminated with blood and other bodily fluids from discarded diagnostic samples, cultures, and stocks of infectious agents either from lab work or waste from patients with infections i.e., bandages, swabs, COVID-19 test kits, disposable medical devices.

Pathological waste – human tissue, organs or fluids, body parts and contaminated animal carcasses.

Sharp waste – needles, blades, syringes and disposable scalpels.

Chemical waste – solvents and reagents used for laboratory preparations; disinfectants, sterilant,  heavy metals contained in medical devices (mercury in thermometers) and batteries.

Pharmaceutical waste – expired, unused and contaminated drugs and vaccines.

Cytotoxic waste – waste containing substances with genotoxic properties (highly hazardous substances that are mutagenic or carcinogenic) such as cytotoxic drugs used in cancer treatment and their metabolites.

Radioactive waste – products contaminated by radionuclides including radioactive diagnostic material or substances from radiotherapy.

Non-hazardous waste – waste that does not pose any particular biological, chemical, radioactive or physical hazard for example office waste.

MAJOR SOURCES OF HEALTH CARE WASTE

 

  • Hospitals and health facilities
  • Research centres and laboratories
  • Mortuaries and autopsy centres
  • Nursing homes
  • Blood banks and collection services
  • Animal research and testing laboratories

It should be noted that High Income Countries tend to generate more hazardous waste than Low Income Countries (LICs). However, medical waste from LICs is often not separated into hazardous and non-hazardous waste. Therefore, the quantities of hazardous waste could be higher. Alarmingly, in LICs some medical operators tend to mix medical waste with domestic waste which can be potentially dangerous.

EFFECTS OF MEDICAL WASTE ON THE ENVIRONMENT

 

  • The healthcare industry accounts for 4.4% of worldwide carbon emissions which is equivalent to greenhouse gas emissions from 514 coal power plants. This would make it the fifth-largest carbon gas emitter if categorized as a country.
  • Medical waste contains harmful microbes that could potentially affect health workers, patients, and the public. It may also expose people to drug resistant micro-organisms which could have detrimental effects.
  • It could also contribute to air pollution through the incineration of medical waste that will release particulate matter, dioxins, heavy metals (mercury, lead, cadmium) and furans into the atmosphere. Incineration also generates ash residue that contains traces of the chemical, biological and radioactive compounds. If not treated properly it could be an environmental hazard.
  • Untreated medical waste should be disposed of in the right manner. When this waste is disposed of in landfills it can lead to the contamination of soil, surface and ground water.
  • Chemical waste from hospitals can lead to the release of chemical compounds into the environment. These include lab reagents, disinfectants, or solvents. For instance, formaldehyde – used in disinfection, preservation, and embalming, breaks down into formic acid and carbon monoxide when exposed to the atmosphere. These compounds are harmful and can make animals sick, affect their ability to breed, change their behaviour and appearance or reduce their lifespan.
  • The increased use of single-use products such as masks, personal protective equipment, bandages, gauze, or specimen collection containers, result in the disposal of large amounts of plastics.

WHAT CAN BE DONE?

  • Raising awareness of the risks related to health care waste.
  • Promoting safe practices and regulations that limit the volume of wastes generated and ensure that waste segregation is a priority.
  • Advocate for environmentally friendly management options to safeguard the public during collection, handling, storing, transporting, disposing and treating waste.

Medical waste can have serious health and environmental impacts however, reusing single use products like bandages and gauze may lead to the transmission of infections to patients or reduced use of energy could put patients’ lives at jeopardy, but on the other hand both scenarios lead to increased environmental pollution. Therefore, it is difficult to know where to draw the line between environmental conservation and public health. However, this does not mean wastefulness should be encouraged in medical centres.

SOURCE

https://www.who.int/news-room/fact-sheets/detail/health-care-waste

 

Waste Management

E-waste: When Electronics Become Waste.

Electronic devices

Did you know there are more mobile phones than people in the world? It is estimated that on average an individual owns up to two mobile phones. Cell phones have become such important tools in our daily lives that it’s no surprise that some act like it is an appendage in the human body. In this article, we will be looking at the impact of waste generated from our love of electronics on the environment.

Electronic waste is defined as electrical or electronic gadgets that are no longer useful or have reached the end of life and are destined for either re-use, refurbishment, recycling or disposal. Half of e-waste includes personal devices like phones, laptops and tablets whilst the rest are household appliances such as televisions, computers and printers.

Just like fast fashion, people tend to give up semi-new products in exchange for newer, slicker and better devices which have created a major e-waste problem. Further complications are created because many electronic devices are hibernating in people’s drawers and garages.

It should also be noted that the negative impact of the electronics manufacturing industry is not only felt in e-waste. Coltan is a metal used in the production of tantalum capacitors that is incorporated in many electronics. Its main function is to store electricity.

80% of the world’s coltan is found in the Democratic Republic of Congo which has become an epicenter of conflicts and illegal mining that has affected millions of Congolese. Labourers, including children, are forced at gun point to mine the metal in horrible conditions for the retrieval and sale of the metal to electronic giants across the world.

In addition, the mining for coltan has endangered the Grauer’s gorilla through habitat destruction and poaching and remains the primary reason the population of the Grauer’s gorilla has declined by 77 %.

 

A Grauer’s gorilla and its baby (Carlos Drews / WWF)

What Happens to The Electronics We Dump?

According to a UN report, approximately, 50 million tons of e-waste is produced annually and only 20% is recycled formally. The remaining 80% is either recycled informally or accumulates in landfills.

A large percentage of e-waste in Western countries is transported illegally to developing countries where they are then recycled informally. The workers mainly separate the waste by hand and burn the non-metal components in order to retrieve the metals inside. This exposes the workers to cadmium, lead and mercury which can cause grave health conditions such as damage to the nervous and immune system, anaemia, kidney and skeletal problems.

 

E-waste in a landfill

What Can Be Done?

E-waste produced yearly has an estimated worth of $62.5 big ones ( lol.. billions) thus electronic recycling is quickly becoming an emergent, fast growing part of the recycling industry.

7% of the gold in the world is found in e-waste and surprisingly, there is less gold in a ton of gold ore than in a ton of e-waste. (Here’s an incentive to venture into electronic recycling hehe!)

Manufacturers need to be held responsible for the disposal of old devices by consumers and develop sustainable recovery strategies. Apple has trade ins in place whereby old iPhones still in mint condition are refurbished and resold. Old phones ruined beyond repair, are recycled and the materials recovered.

It is feared that improper management of e-waste is depleting valuable and raw materials from the Earth’s reserve and a circular economy could be the remedy.

A circular economy is one in which raw materials are not extracted, used and discarded but are recovered and reused in order to minimize environmental impacts and create sustainable jobs. This could be done by implementing durable product designs and buy-back & return systems for used devices.

Cell phones have a short lifespan but are of high value when compared to other electronics. There is 0.034g of gold and 0.35g of silver in each cell phone; their main purpose is conductivity of signals through the phone. If 1 million cell phones were recycled 35,200 lbs of copper, 770 lbs of silver, 75 lbs of gold and 30lbs of palladium would be recovered.

What is Kenya Doing?

According to a UNEP report, 44,000 tons of e-waste is produced in Kenya annually. The national government has drafted the National E-waste Management Strategy which is a 5-year plan that hopes to achieve a sustainable e-waste management system in the country.

It is said to start in 2022/2023 and it will include e-waste management infrastructure and the required tools for collection, transportation and disposal. The strategy also proposes cash incentives for consumers and will waive tax constraints for companies that collect and manage e-waste.

IMPACTS OF E-WASTE ON THE ENVIRONMENT AND HUMAN HEALTH

 

  • It causes air pollution due to the burning of discarded e-waste parts that are not recyclable, like plastic. This releases greenhouse gases into the atmosphere.
  • Water pollution – toxic chemicals such as mercury, lead, barium and lithium (carcinogens) from e-waste discarded in landfills or that has been buried underground, infiltrate through the soil and contaminate underground water sources and surface water bodies.
  • Soil pollution – as e-waste breaks down it releases heavy metals (lead, arsenic and cadmium) into the soil which are absorbed by plants leading to biomagnification through the food chain.
  • In addition, lead poisoning can occur when humans are exposed to e-waste this causes damage to the central & peripheral nervous system and kidney failure.
  • Hexavalent chromium affects the eyes, skin, liver, kidneys and respiratory system and phthalates affect the reproductive system, lungs, kidneys and liver both of which are found in e-waste.

TIPS AND TRICKS

 

  1. Donate old electronics.
  2. Rent electronics instead of buying new ones if you plan to use them for a limited period.
  3. Take care and properly maintain your electronics, i.e., keep your phone and laptop clean, utilize covers and screen protectors, do not store too much data on your gadget to ensure that it runs smoothly, do not overcharge the battery to lengthen its life span.
  4. Recycle old electronics.
  5. Re-purpose and re-evaluate, i.e., determine if the new device is more of a want or a need.
  6. Repair your electronics instead of replacing if repairable.

Closing remarks

E-waste is a growing problem with dire repercussions. Therefore, we need to be more conscious of the choices we make when it comes to acquiring electronics that may not be a necessity.

 

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