Cradle to Consumer
Identity ID
7fb055aa-f9d0-42e4-ab5e-237f01bfa451
Materials
Associated ID
750549b8-b370-4b00-bcd3-03624851a00d
Included activities starts
Included activities ends
Description
This dataset is a market dataset, representing the consumption market of the region; the dataset includes the transport of the product from the gate to the consumer end, and the transport service is calculated according to the transport situation of this product in this region. Industrial polyaluminium chloride is mainly used in fields such as industrial water supply, wastewater treatment, and the decolourisation and phosphorus removal of municipal sewage; the dataset contains the main raw and auxiliary materials, energy, atmospheric emissions, wastewater and solid waste of the production process, in which the wastewater and waste gas treatment processes are included within the dataset scope, and infrastructure such as the manufacture of production equipment and the construction of plant buildings is not included within the dataset boundary; the data inventory is formed by merging data from multiple sources; the production activities of this product include charging, dilution, heating, pH adjustment, polymerisation reaction, plate-and-frame filter pressing, settling and drying. The drying process comprehensively considers both spray drying and drum drying.
Activity Description
The production activities of this product include feeding, dilution, temperature raising, pH adjustment, polymerization reaction, plate and frame filter press, sedimentation, drying and other processes. The drying process comprehensively considers two methods: spray drying and drum drying.
Process Description
Polyaluminum chloride (PAC), CAS number 1327-41-9, is an inorganic polymeric coagulant supplied as a yellow or pale-yellow powder. It dissolves readily in water and forms highly charged polymeric cations. Its hydrolysis products efficiently neutralize the negative charge of colloidal particles and form large, dense flocs through adsorption and bridging, significantly improving water-purification efficiency. PAC is widely used in drinking-water treatment, industrial wastewater treatment, and the decolorization and phosphorus removal of municipal wastewater. It is also used as a sizing agent in papermaking and in the manufacture of antiperspirants.
Time period
2016
2026
Geography
China,Tianjin
Macroeconomic value
Business-as-Usual
Data validation
Yes
Technology
Current Technology
Technology comment
After the bauxite and hydrochloric acid are diluted in the reaction tank, the temperature of the reaction tank is raised to 50°C and then the heating is stopped and the reaction occurs on its own. The temperature in the tank will gradually increase and is artificially controlled at 100-105°C. After reacting for a period of time, add water to adjust the Baume value to 30, then add calcium aluminate powder, control the temperature at 80-90°C for a period of time, and then polymerize into a polyaluminum chloride liquid. Then add sodium hydroxide to neutralize and stir until the reaction is completed.