... treatment of wastewater reuse.(3).River regulation: denitrification, dephosphorization, decarbonization, water purification.(4). Aquiculture (pond, fish farming and aquarium): denitrification, decarbonization ... deodorization tower packing. 3. Common SpecificationsΦ10×7mm, Φ10×10mm, Φ12×10mm, Φ12×12mm, Φ25×9mm, Φ25×10mm, Φ25×12mm.We can ...