Mob.:
+86 156 3115 5652
Mob.:
+86 156 3115 5652
E-mail:
thinkdo_calvin@126.com/thinkdochem@126.com
Mob.:
+86 156 3115 5652
Mob.:
+86 156 3115 5652
E-mail:
thinkdo_calvin@126.com/thinkdochem@126.com
Application
Against the backdrop of increasingly scarce water resources and growing industrial water demand, efficient and environmentally friendly water treatment technologies and products have become critically important. Thanks to its unique chemical properties and outstanding performance, polyaspartic acid (PASP) demonstrates extensive and significant application value in the water treatment field, offering innovative solutions to various water treatment challenges.
Industrial circulating water systems are highly prone to scaling problems, which seriously affect heat transfer efficiency and equipment service life. Polyaspartic acid exhibits strong inhibition capabilities against common scales such as calcium carbonate, calcium sulfate, and calcium phosphate. Through the carboxyl groups in its molecular structure, PASP chelates with metal ions in water (such as calcium ions) to form stable, water-soluble complexes. This process disrupts the normal growth and aggregation of scale crystals, thereby preventing scale deposition on pipelines and equipment surfaces.
For example, in the circulating water system of a large chemical enterprise, significant calcium carbonate scaling occurred every few months before PASP was introduced, requiring frequent system cleaning that consumed substantial labor and resources and caused production interruptions. After applying polyaspartic acid, the scaling rate was significantly reduced, the cleaning cycle was extended to over one year, and heat transfer efficiency remained stable, effectively lowering overall operating costs.
Dissolved oxygen and chloride ions in circulating water can cause corrosion of metal pipelines and equipment. Polyaspartic acid forms a dense protective film on metal surfaces through chemical adsorption, effectively isolating the metal from corrosive media. In addition, PASP can regulate surface charge distribution on metals, inhibiting the anodic dissolution process and thus reducing corrosion rates.
According to practical test results, in circulating water containing a certain concentration of chloride ions, the corrosion rate of carbon steel decreased by more than 60% after adding polyaspartic acid. This significantly extended the service life of metal equipment and reduced leakage risks and replacement costs caused by corrosion.
During boiler operation, continuous water evaporation and concentration increase the levels of calcium and magnesium ions, making scale formation highly likely. Polyaspartic acid effectively chelates these metal ions, preventing the formation of insoluble salt precipitates. At the same time, it alters the crystal growth pattern of scale, transforming hard, dense deposits into loose, easily removable particles that can be carried away by water flow, thus preventing scale accumulation on boiler heating surfaces.
After applying polyaspartic acid in the boilers of a thermal power plant, the amount of scale on the inner walls was significantly reduced. Thermal efficiency improved notably, and coal consumption decreased by approximately 8%, resulting in energy savings and a reduction in safety risks caused by scaling.
The high-temperature and high-pressure environment inside boilers, combined with dissolved oxygen in water, creates severe corrosion challenges. The corrosion inhibition effect of polyaspartic acid plays a vital role in boiler water treatment as well. The protective film formed on metal surfaces effectively resists corrosive media and protects the boiler’s metal structure. Additionally, PASP can react with dissolved oxygen in water, reducing oxygen concentration and further mitigating corrosion.
Long-term monitoring shows that boilers treated with polyaspartic acid experienced a corrosion rate reduction of more than 50%, extending maintenance intervals and service life while ensuring stable operation of thermal power plants.
In wastewater treatment processes, polyaspartic acid can function as a dispersant, evenly dispersing suspended solids and colloidal impurities in water and preventing aggregation and sedimentation. At the same time, PASP exhibits certain flocculation properties, promoting collisions and bonding between small particles to form larger flocs, which facilitates subsequent sedimentation or filtration.
In the wastewater treatment system of a textile dyeing plant, the combined use of polyaspartic acid with traditional flocculants significantly improved the removal efficiency of dye particles and other impurities. The effluent color was markedly reduced, water clarity improved, and discharge standards set by national regulations were successfully met.
Polyaspartic acid features excellent biodegradability. During wastewater treatment, it can be decomposed by microorganisms into harmless substances such as carbon dioxide, water, and ammonia nitrogen, without causing secondary pollution. This characteristic makes PASP an ideal choice in today’s increasingly stringent environmental regulatory environment. Compared with traditional phosphorus-containing or heavy-metal-based water treatment chemicals, polyaspartic acid aligns with sustainable development principles and strongly supports the green advancement of the wastewater treatment industry.
With its outstanding performance in scale inhibition, corrosion control, dispersion, and biodegradability, polyaspartic acid has become an indispensable product in the water treatment field. Whether applied in industrial circulating water systems, boiler water treatment, or wastewater treatment, PASP plays a critical role in improving treatment efficiency, reducing operational costs, and minimizing environmental impact. As environmental awareness continues to rise and water treatment technologies advance, the application prospects of polyaspartic acid will become even broader, contributing significantly to the sustainable utilization and protection of global water resources.
