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Female lab technician in safety goggles, gloves and white lab coat testing water samples with glassware inside modern water quality laboratory
2026.09.15
Alum in Drinking Water Treatment: An Effective Coagulant for Water Purification

Raw surface water carries sand, clay, colloids, humic matter, algae, and other fines. These particles make water turbid, overload filters, and interfere with disinfection. For…

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Aerial overhead view of large industrial chemical plant with processing units, pipelines, tall red-and-white chimneys and white storage tanks
2026.09.15
Alum as an Aluminum Salt Raw Material for Chemical Production and Industrial Formulation

Alum is usually discussed as a water-treatment coagulant. Nevertheless, it also serves as an aluminum-bearing feedstock in selected chemical manufacturing and formulation work. Its stable…

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Paper mill production line, large industrial paper machine producing big white paper rolls inside factory workshop
2026.09.15
Alum in Paper Manufacturing: Sizing, Retention and Process Water Treatment

In papermaking, the word “alum” needs an immediate clarification. In industrial paper mills, it almost always means aluminum sulfate (Al₂(SO₄)₃), not potassium alum. Potassium alum…

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Industrial textile dyeing wastewater treatment plant with large circular sedimentation tanks containing colorful dyed wastewater, pipelines and safety railings
2026.09.15
Alum in Textile Dyeing Wastewater: An Effective Coagulant for Pretreatment

Textile dyeing wastewater is notoriously difficult to treat. It carries dyes, fibers, sizing agents, surfactants, auxiliaries, suspended solids, and colloids — usually with high color…

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Traditional leather tanning workshop, raw animal hides soaking in large wooden tanning vats for alum tanning processing
2026.09.15
Alum in Leather Processing: Astringency, Collagen Interaction and Specialty Tanning

Alum and other aluminum salts have been used in leather and hide processing for centuries. Today, however, they are most relevant to alum tawing, fur…

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