Acidic water quality refers to a water quality state in which the content of acidic substances in water is higher than that of alkaline substances. Acidic water quality is harmful to both humans and the environment, so it needs to be treated and regulated.
Basic aluminum chloride is a commonly used water treatment agent, which has the effect of purifying water quality. Basic aluminium chloride can be used as a water treatment agent to treat turbid substances and suspended particles in water, thereby improving the transparency of water quality.
The treatment mechanism of basic aluminum chloride is as follows:
1.Electrical neutralization: The aluminum ions in the basic aluminum chloride can neutralize the basic substances in the water, converting them into water or salts with high water solubility.
2.CohesivenessBy adding basic aluminum chloride, the negatively charged suspended substances and particulate matter can be combined with each other and aggregated into larger sediments or floating solids, so as to improve the sedimentation performance of the treated water quality.
3.Bridging: The aluminum ions in the basic aluminum chloride have a bridging effect, which can effectively connect the suspended material and the particulate matter, increase their adsorption force between each other, and thus promote their condensation and precipitation.
When using basic aluminum chloride for water quality treatment, the following points need to be noted:
1.Use in moderation: Excessive amounts of basic aluminium chloride can increase treatment costs and have adverse effects on water bodies and the environment, so they need to be properly metered and operated.
2.pH controlThe coagulation effect of basic aluminum chloride is closely related to the pH value of the water body, and in general, the coagulation effect of basic aluminum chloride is better under neutral or weakly acidic conditions.
3.Mix and stir: Before adding basic aluminum chloride, sufficient mixing and stirring are required to ensure that the agent can be evenly dispersed in the water body.
4.Precipitation timeAfter adding basic aluminum chloride, it is necessary to give enough precipitation time so that the suspension and particulate matter can fully precipitate, so that the water quality can be effectively improved.
Basic aluminum chloride is widely used in the following fields:
1.Tap water treatment: Basic aluminum chloride can be used for coagulation and sedimentation treatment in waterworks to remove suspended substances in the water and make the water clear and transparent.
2.Industrial wastewater treatmentBasic aluminum chloride can be used for the purification of industrial wastewater to remove suspended substances and particulate matter in wastewater to meet the discharge standards.
3.Sewage treatmentBasic aluminum chloride can be used for sludge dewatering in sewage treatment plants to improve the sedimentation performance of sludge, thereby reducing the burden of subsequent treatment processes.
4.Rainwater harvesting systemsBasic aluminum chloride can be used to treat overhangs and impurities in rainwater harvesting systems to improve the reusability of rainwater.
In summary, basic aluminum chloride is a commonly used water purification agent, which can effectively treat acidic water quality and improve the transparency of water quality. When using basic aluminum chloride, it is necessary to pay attention to reasonable use and operation to achieve good treatment results.