How is the economic efficiency of polyaluminium ferric chloride (liquid) in sewage treatment?
Publish Time: 2025-06-11
In the sewage treatment process, choosing the right coagulant is crucial to improve treatment efficiency and reduce costs. Polyaluminium ferric chloride has been widely used in sewage treatment due to its excellent performance. In addition to its excellent flocculation effect, polyaluminium ferric chloride (liquid) also shows significant advantages in economic efficiency, making it an ideal choice for many sewage treatment plants.First of all, polyaluminium ferric chloride (liquid) has a high flocculation efficiency, which means that the required dosage is relatively small. The key to efficient flocculation lies in its unique chemical structure, which is composed of aluminum salts and iron salts, and can quickly form a large number of multi-nuclear complexes in water. These complexes can not only effectively neutralize negatively charged colloidal particles in water, but also promote coagulation and sedimentation between particles through bridging. Compared with traditional single-component coagulants such as aluminum sulfate or ferric chloride, PACF can achieve the same or even better flocculation effect at a lower dosage. This high efficiency not only reduces the use of reagents, but also reduces transportation and storage costs, thereby improving overall economic benefits.Secondly, the application of polyaluminium ferric chloride (liquid) can significantly reduce sludge production. Due to its efficient flocculation performance, the flocs formed are relatively compact, small in size, and easy to settle and dehydrate. This not only shortens the sedimentation time and improves the treatment efficiency, but also reduces the cost of subsequent sludge treatment. Traditional coagulants may produce more and loose flocs, resulting in large sludge volume and high water content, which increases the difficulty and cost of sludge disposal. In contrast, the compact flocs generated by PACF are easier to mechanically dehydrate, reducing energy and chemical consumption during sludge treatment, and further reducing operating costs.Furthermore, polyaluminium ferric chloride (liquid) has a wide pH range of application, usually maintaining good flocculation effects between 4 and 9. This means that in practical applications, there is no need to frequently adjust the pH value to optimize the coagulation effect, saving the acid and alkali agents and operating steps required to adjust the pH. In addition, PACF has strong adaptability to temperature changes and can maintain good flocculation performance even under low temperature conditions, avoiding additional treatment requirements due to seasonal changes. These characteristics enable PACF to function stably under different water quality conditions, reducing operational complexity and increased costs caused by water quality fluctuations.It is worth noting that polyaluminium ferric chloride (liquid) performs well in removing a variety of pollutants. In addition to conventional suspended solids, PACF can also effectively remove organic matter, chromaticity, phosphorus, and heavy metal ions in water. For example, when treating phosphorus-containing wastewater, PACF can reduce the phosphorus content in water by chemically reacting with phosphate ions to form insoluble aluminum phosphate or iron phosphate precipitates. Similarly, for wastewater containing heavy metal ions such as lead, cadmium, and chromium, PACF can also remove them from water through adsorption and coprecipitation to achieve the purpose of purifying water quality. This versatility reduces the need for other special treatment equipment, simplifies the process flow, and reduces overall investment and operating costs.In addition, the environmental protection characteristics of polyaluminium ferric chloride (liquid) are also an important part of its economic efficiency. As a relatively environmentally friendly coagulant, the raw materials used in the production process of PACF are all common metal salts, and the preparation process is simple and energy consumption is low. At the same time, PACF does not produce toxic and harmful substances after use, avoiding the risk of secondary pollution. Therefore, choosing PACF as a coagulant not only helps to improve water quality, but also protects the ecological environment, which is in line with the concept of sustainable development. In the long run, this environmentally friendly choice can reduce the company's investment in environmental governance and reduce potential legal risks and fines.Finally, the application of polyaluminium ferric chloride (liquid) can also extend the service life of equipment and reduce the frequency of maintenance and replacement. Due to its efficient flocculation performance, it reduces scaling and clogging inside the equipment and reduces the frequency of cleaning and maintenance. This not only reduces downtime and labor costs, but also extends the service life of key equipment and reduces the investment in equipment renewal. In addition, the use of PACF simplifies the operating process, reduces the workload of operators, improves work efficiency, and indirectly reduces labor costs.The economic benefits of polyaluminium ferric chloride (liquid) in sewage treatment are mainly reflected in its high flocculation efficiency, reduced sludge production, wide pH range, versatility, environmental protection characteristics and extended equipment life. Choosing polyaluminium ferric chloride (liquid) is to inject an efficient and reliable guarantee into your sewage treatment system, ensuring that each treatment can achieve the best results while achieving significant economic benefits. Whether it is a municipal sewage treatment plant or an industrial wastewater treatment facility, polyaluminium ferric chloride (liquid) is an economical and efficient choice worthy of consideration. By optimizing the dosage and operating procedures, enterprises can not only improve the treatment effect, but also significantly reduce operating costs and enhance market competitiveness.
