The effects of phosphoric acid on aquatic ecosystems can be considered as a negative effect. Phosphoric acid is not a strong acid. It is stronger than acetic acid, but weaker than sulfuric acid and hydrochloric acid. Phosphoric acid salts can be formed by substituting one, two or three hydrogen ions. For example, NaH2PO4, sodium dihydrogen phosphate, can be formed by reacting one mole of phosphoric acid with one mole of sodium hydroxide.
Increasing the concentration of phosphate in surface water also increases the growth of aquatic plants. Runoff from fertile farmland can stimulate plant growth in lakes and rivers.
In such cases, the concentration of phosphoric acid accumulated in the wastewater causes atrophy, meaning the rapid growth of algae, which can harm aquatic animals. To reduce the risk of eutrophication, many local authorities have banned the use of phosphates in detergents. . However, when used in a controlled environment, phosphoric acid performs well and does not harm the ecosystem.
Phosphoric acid is a component of most fertilizers that helps plants grow.
When applied too much or applied at the wrong time, such as before rain, most of it is washed away and ends up in local waterways. This type of pollution is called non-point source pollution. This causes atrophy (reduction of water-soluble oxygen due to an increase in minerals and organic nutrients) in rivers and lakes. This decrease in oxygen levels in the water causes the fish to suffocate. Municipalities in some cities have banned the use of phosphoric acid fertilizers for grass. These laws are designed to protect local water quality in lakes, streams and ponds. According to several experts, in most cases phosphorus is not needed to maintain healthy grass.
Phosphorus (P), a structural and functional component of all living organisms, is considered to be the last limiting nutrient in marine ecosystems. To optimize uptake, marine species such as protozoa, sponges, foraminifera, oysters, and rock corals have established a symbiotic relationship with algae, which recycles animal host wastes and soluble mineral nutrients. Converts into organic molecules. Their host availability creates such a competitive advantage in an environment where nutrient availability is low.
Use of waste in the phosphoric acid industry through the development of environmentally friendly processes for a wide range of phosphorus-containing products.
The project “Use of waste in the phosphoric acid industry through the development of environmentally friendly and environmentally friendly processes” (Ecophos) focuses on a number of new techniques for the production of phosphorus, phosphoric acid and phosphate salts. The goal was to develop industrial process technology resources and energy to produce a wide range of phosphorus-containing materials. The consortium has improved current methods for using and minimizing industrial solid waste from phosphoric acid production. Production of a new generation of phosphorus fertilizers was also studied.
Mathematical models and computer-based engineering tools were used to ensure the efficient and environmentally friendly operation of the production system. The goal was to reduce costs, waste and energy consumption. The production system is classified according to the properties of the waste and the potential to reduce environmental impact and increase sustainability. An expert system enables users to choose a production plan that is close to their needs. The Ecophos initiative produced an environmentally friendly industrial process technology that can conserve both resources and energy.