| Title | Review of Soil Quality Improvement Using Biopolymers from Leather Waste |
|---|---|
| ID_Doc | 8184 |
| Authors | Stefan, DS; Bosomoiu, M; Dancila, AM; Stefan, M |
| Title | Review of Soil Quality Improvement Using Biopolymers from Leather Waste |
| Year | 2022 |
| Published | Polymers, 14.0, 9 |
| Abstract | This paper reviews the advantages and disadvantages of the use of fertilizers obtained from leather waste, to ameliorate the agricultural soil quality. The use of leather waste (hides and skins) as raw materials to obtain biopolymer-based fertilizers is an excellent example of a circular economy. This allows the recovery of a large quantity of the tanning agent in the case of tanned wastes, as well as the valorization of significant quantities of waste that would be otherwise disposed of by landfilling. The composition of organic biopolymers obtained from leather waste is a rich source of macronutrients (nitrogen, calcium, magnesium, sodium, potassium), and micronutrients (boron, chloride, copper, iron, manganese, molybdenum, nickel and zinc), necessary to improve the composition of agricultural soils, and to remediate the degraded soils. This enhances plant growth ensuring better crops. The nutrient release tests have demonstrated that, by using the biofertilizers with collagen or with collagen cross-linked with synthetic polymers, the nutrient release can be controlled and slowed. In this case, the loss of nutrients by leaching into the inferior layers of the soil and ground water is minimized, avoiding groundwater contamination, especially with nitrate. |
| https://www.mdpi.com/2073-4360/14/9/1928/pdf?version=1652234194 |
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