Abstract: With prior-art biofilm treatment methods involving the use of microorganism carriers, the microorganism carrier filter beds get blocked as the biofilms grow, highly concentrated organic wastewaters, oily/fatty wastewaters, etc. cannot be stably treated, the appreciable costs incurred in dehydrating, drying, and incinerating the reduced-volume sludge of the generated excess sludge, treating the incineration ash, etc., are further increased, compounding the financial considerations relating to various spheres of operation. A wastewater treatment carrier comprises a core portion and a microorganism holding portion, wherein the microorganism holding portion is formed with multi-threads characterizing in that the fibers of the multi-threads are formed in a relaxed state so that the fibers can be spaced apart from each other in the wastewater with forming in multiple stages and a loop. The invention can also be adapted to high-concentration organic wastewater and/or inflowing raw water having high load variability.

Abstract: A containerized polluted-water treatment apparatus which is mobile and transportable and easily installed in the neighborhood of a polluted water source without any particular works, characterized by comprising at least one container that has a water inlet and a water outlet and is provided with a water treatment unit having biological supports and a combination of a power unit and a control device by which the water treatment unit is operated.

Abstract: A floating water purification device comprising at least a treatment tank enclosing a certain water area and a float which causes the tank to float in water, is characterized by the treatment tank having a plurality of inner biological supports together with at least one water inlet and one water outlet.

Abstract: A microbial media comprising numerous U type loops having at least two types of fibers woven on a central stay, at least one of these fibers being polyvinylidene chloride, acryl, nylon, polypropylene, polyethylene or carbon; and a waste water treatment method using same.