MgO and Kieserite have emerged as essential materials in environmental engineering due to their chemical reactivity, alkaline buffering properties, and alignment with sustainable treatment strategies. These magnesium-based compounds are widely used in wastewater treatment and flue gas desulfurization to support cleaner industrial processes and contribute to global environmental compliance.

In wastewater applications, powdered MgO acts as a strong alkaline agent and source of divalent cations, facilitating the precipitation of heavy metals such as cadmium, arsenates, and chromates. Its buffering action also stabilises acidic waste streams, particularly in industrial effluents from electroplating, mining, and dyeing operations. For systems requiring slower release or lower solubility, granular MgO is used in reactive filtration or neutralisation beds, offering prolonged alkalinity control without rapid dissolution. Studies have shown that coarse MgO with optimised surface area still offer high efficiency in multi-contaminant removal while being cost-effective in large-scale operations. Kieserite, being a water-soluble source of both magnesium and sulphur, improves microbial balance in sludge, aids in odour reduction, and contributes to optimised conditions for nutrient stabilisation. In agricultural and municipal wastewater systems, it also plays a key role in enhancing sludge dewatering and supporting overall treatment efficiency.

In flue gas desulfurization, MgO is gaining preference over traditional calcium-based reagents due to its higher reactivity and lower sludge generation. When reacting with SO₂, it forms magnesium sulphite and sulphate, both stable compounds with desulfurization potential and lower post-treatment demands. This approach is particularly advantageous in waste-to-energy facilities, cement kilns, and coal-fired power plants, where SO₂ fluctuations demand a flexible and efficient reagent.

At Chinese Kieserite Company Pte. Ltd., we offer a full range of high-purity magnesium-based materials optimised for environmental performance. Whether used in effluent treatment or industrial emission control, our products help industries achieve their environmental compliance targets while supporting broader global efforts in pollution mitigation and sustainable development. Our goal is to support long-term ecological balance by providing reliable, application-ready solutions grounded in proven industrial performance.