The recycling of phosphorus takes place mainly in agriculture. It is based on the use of various sources containing P, e.g. sludge from wastewater treatment (Shiu et al., 2017; Ye et al., 2017), livestock manure (Haase et al., 2017) and dry waste (Pearce and Chertow, 2017).
How is phosphorus recycled?
Much of the phosphorus on Earth is tied up in rock and sedimentary deposits, from which it is released by weathering, leaching, and mining. Some of it passes through freshwater and terrestrial ecosystems via plants, grazers, predators, and parasites, to be returned to those ecosystems by death and decay.
Why can we recycle phosphorus?
Phosphates play a key role in maintaining food security and overall life on Earth; the phosphorus available in phosphates is a necessary nutrient for many biological processes that occur in humans, plants, and animals.
Is phosphate recycled?
Recycling phosphates from industrial sources is possible in many cases, depending on the source.
Can we recycle phosphorus from human waste?
Recovering phosphorus from human excreta can contribute to more efficient use of phosphorus to ensure its availability for food production in the future. Phosphorous can be recovered through different recovery technologies and consequently used in agriculture via different recycling routes.
Can phosphate rock be recycled?
Abstract. The feasibility of phosphate recycling in the white phosphorus production process is discussed. … Recycling phosphates from industrial sources is possible in many cases, depending on the source.
Why do we need phosphorus?
What is phosphorus? Phosphorus is a mineral found in your bones. Along with calcium, phosphorus is needed to build strong healthy bones, as well as, keeping other parts of your body healthy.
Where is phosphorus stored?
Unlike carbon and nitrogen, most of the phosphorous on Earth is stored in soil and rocks in the form of phosphate. Phosphate is one molecule of phosphorous surrounded by four molecules of oxygen, or PO43–. Plants can absorb phosphate directly through their roots.
How is phosphorus used in agriculture?
Most of the phosphorus used in fertilizer comes from phosphate rock, a finite resource formed over millions of years in the earth’s crust. Ninety percent of the world’s mined phosphate rock is used in agriculture and food production, mostly as fertilizer, less as animal feed and food additives.
Can we live without phosphorus?
Phosphorus is an essential nutrient for all forms of life. It is a key element in our DNA and all living organisms require daily phosphorus intake to produce energy. It cannot be replaced and there is no synthetic substitute: without phosphorus, there is no life.
How much phosphorus is in human waste?
In terms of phosphorus, it has been estimated that globally there are 0.3–1.5 million metric tons of phosphorus reused annually from the 3 to 3.3 million metric tons of phosphorus generated in human excreta (i.e., feces and urine) and graywater (Liu et al., 2008, Cordell et al., 2009a).
What food waste contains phosphorus?
Besides human urine, there are many naturally occurring sources of phosphorus that can be used in the garden, including bat guano (or feces), bone meal, crab and shrimp waste, burned cucumber skins, hair and mushroom compost.
What food waste is high in phosphorus?
Most food wastes are quite high in phosphorus, especially potato peels and meat products. The ground up particles from these wastes increase phosphorus concentrations in the wastewater.