Examples of wasting in the following topics:
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- These other systems are responsible for the elimination of the waste products of the metabolism, as well as other liquid and gaseous wastes, but also provide other critical functions.
- The skin, lungs, and liver are the main waste removal organs outside of the non-renal system; however, their ability to remove wastes is generally less than that of the renal system.
- While the liver may breakdown or neutralize waste in a different and safer form for the body, it doesn't directly remove the waste from the body.
- Skin has sweat glands that secrete a fluid waste called perspiration.
- Excreting more carbon dioxide waste will reduce the acidity of blood.
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- Since packaging produces a substantial amount of waste, and waste is always a sign of wasted money, reducing packaging material is a good way for a business to decrease its expenses.
- For example, the British government's waste advisor (WRAP) states that food and drink packaging waste in UK supply streams amounts to 6.6 million tons of material and costs £5 billion annually.
- To combat this waste, food retailer giant Tesco introduced trayless bags for chickens that reduced packaging by 68% resulting in 540 fewer Tesco delivery vehicles on the road.
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- Waste minimization has proven benefits to industry and the wider environment.
- Waste minimization often requires investment, which is, at least in theory, usually compensated by the savings.
- However, waste reduction in one part of the production process may create waste production in another part.
- There are government incentives for waste minimization, which focus on the environmental benefits of adopting waste minimization strategies.
- By producing using materials that are recyclable, landfill waste can be minimized.
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- Non-value-added activities are referred to as "waste" in JIT.
- Examples of waste include:
- waste from product and service defects (rework, scrap, warranty, etc. )
- In a manufacturing setting, there are six major ways to pursue JIT goals: inventory reduction to expose waste, use of a "demand-pull" production system, quick setups to reduce lot sizes, uniform plant loading, flexible resources, and cellular flow layouts.
- Inventory covers up a lot of wasteful practices (poor equipment, weak vendors, bad quality, long setup times, etc.).
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- Waste audit.
- Hidden waste such as unused raw materials, wasted energy and water, and wasted time are also taken into consideration.
- Waste disposal audit.
- During the first part of this audit, waste management documentation is usually the first thing that is checked (e.g. waste management licenses, waste carrier licenses, and duty of care reports).
- As one practitioner put it, ‘When we conduct a waste audit we not only measure the amount of waste produced we also know exactly where the waste came from.
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- According to Sierra Nevada's sustainability coordinator, Cheri Chastain, regular measurement helps determine where the company is wasting water, electricity and other resources as well as where physical waste is being produced.
- After a waste source is revealed, Cheri then works with teams of company employees to reduce it.
- The amount of material sent to landfill by weight (based on waste hauler invoices).
- To round out Sierra's waste measurements, greenhouse gas inventories are also kept.
- Chastain has discovered, it's difficult, if not impossible, to know how much waste a company produces, how much waste it has eliminated, or how much money it has saved without accurate, ongoing record-keeping.
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- Mention the amounts of waste most products leave behind and many people roll their eyes under the assumption that the numbers are being exaggerated to prove a point.
- The answer is that mass production, bulk raw material costs, mass transportation and externalized costs don't just lower the expense of making a product they also hide the cost of waste – and a common city public transport ticket can be used to illustrate this point.
- Although the lengthier journey requires more energy and produces more waste, these extra costs are not reflected in the fixed price of the ticket – and it is this mistaken logic that sceptics use to debunk product waste costs (the reasoning is that since the price of the ticket remains the same, the bus or train can't be using more fuel or be producing more waste during the longer journey).
- And with waste outputs, many of the costs are externalized – which is why so many waste costs seemingly disappear.
- Put another way, by selling more, the costs of raw materials are spread out; meanwhile, the cost of waste is paid for by the general public in the form of pollution, industrial disasters, health costs, job layoffs, climate change and so on.
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- The term for the amount of waste a product leaves behind as it winds its way from raw material harvesting through production and afterwards is called ecological rucksack – and almost every product carries a greater load than meets the eye.
- Weaving, dyeing, packaging the completed product, and transporting it to retail outlets results in the creation of even more waste.
- Every process creates and leaves behind some form of waste.
- Of course, the waste estimation of a product is dependent upon how far back its materials can be traced, which makes any waste study highly subjective; however, reasonable estimates claim that a semiconductor chip can leave behind 100,000 times its weight in waste during the manufacturing process and the making of a laptop computer produces 4,000 times its weight in waste.
- The production of platinum creates 250,000 units of waste for every unit of precious metal created and a gold ring leaves behind approximately 400,000 times its weight in waste.
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- Flame cells and nephridia remove the waste from bodies through filtration in a manner similar to a kidney.
- Flame cells function like a kidney, removing waste materials through filtration.
- The ciliated tubules filter fluid from the body cavity and carry waste, including excess ions, through openings called nephrostomes.
- In the excretory system of the (a) planaria, cilia of flame cells propel waste through a tubule formed by a tube cell.
- Compare and contrast the way in which planaria and annelids handle waste products
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- Malpighian tubules remove wastes from insects by producing urine and solid nitrogenous waste, which are then excreted from the body.
- The secretion of ions alters the osmotic pressure, which draws water, electrolytes, and nitrogenous waste (uric acid) into the tubules.
- By not dissolving wastes in water, these organisms are able to conserve water; this is especially important for life in dry environments.
- Malpighian tubules of insects and other terrestrial arthropods remove nitrogenous wastes and other solutes from the hemolymph.
- Explain how insects use malpighian tubules to excrete wastes and maintain osmotic balance