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Improving water quality—whether reducing agricultural nutrient leaching, algae blooms, polluted sedimentation, heavy metal contamination or flood occurrence—is an increasingly urgent priority given the economic and environmental cost of current water management practices. Given the high cost of traditional remediation approaches, many soils and water systems go untreated.
Bio-char is gaining increasing attention among the water management industry—from reducing nutrient runoff and algae blooms to purifying municipal drinking water. Premium biochar can be processed, physically and chemically, to provide high performing, cost-effective solutions to many of the challenges facing global water management. Biochar primarily filters contaminants in water through a process known as adsorption, where impurities adhere to the surface of the biochar. Depending on feedstock and process conditions, surface area of biochar can range from less than 100 m2/g to well over 600 m2/g for higher quality chars.
GCS bio carbon features remarkably high porosity and surface area, adsorption capacity, and carbon content all of which enhance water filtration performance compared to lower grade biochars.
Biochar has shown to be an effective, low-cost solution to addressing excess nutrient runoff that feeds harmful algal blooms (HAB’s). From the Great Lakes to the Gulf Coast, HAB’s damage local fisheries and ecosystems, stunt tourism, reduce property values and can create public health impacts. Biochar works by binding nitrogen and phosphorus compounds in the water to reduce the nutrients available for algae growth- limiting the magnitude of the bloom.
Finely milling biochar has shown to produce a low-cost alternative to activated carbon with similar performance when used in polishing municipal water. Milling biochar improves the absorption capacity and reduces residence time, allowing for efficient removal of contaminants from drinking water.