A modular liquid waste treatment system is disclosed. In accordance with some embodiments, the system includes a central distribution unit and one or more treatment fins in flow communication therewith. The distribution unit may be configured to receive liquid waste from a given source and distribute that waste, at least in part, to one or more treatment fins. In turn, bacteria present in a given treatment fin treat the liquid waste, and the resultant treated liquid may drain from the fin to the surrounding environment. In some embodiments, a given treatment fin may include porous media providing a large surface area on which bacteria may grow to facilitate treatment. The system may be installed in and/or above the ground, and in some cases may be surrounded, at least in part, with treatment sand and/or other treatment media. The system may be used in aerobic and/or anaerobic processing of liquid waste.

A fiber bundle for bearing microorganisms. Fiber filaments are wound into a ring shape or have two ends bound into a bundle, or wires, ropes or bands made of staple fibers or fiber filaments are wound into a ring shape or have two ends bound into a bundle or are woven into a strip. A filter layer formed by fiber bundles for bearing microorganisms is characterized in large specific surface area and high porosity, and the unit capacity of bearing the microorganisms may be several times that of a granular filter material.

A fiber bundle for bearing microorganisms. Fiber filaments are wound into a ring shape or have two ends bound into a bundle, or wires, ropes or bands made of staple fibers or fiber filaments are wound into a ring shape or have two ends bound into a bundle or are woven into a strip. A filter layer formed by fiber bundles for bearing microorganisms is characterized in large specific surface area and high porosity, and the unit capacity of bearing the microorganisms may be several times that of a granular filter material.

Aerobic processes are disclosed for the treatment of wastewater which contains at least one substrate comprising at least one of organocarbon component and ammonium cation. A bioreactor is used for the treatment which contains ME biocatalysts to provide high bioreactor bioactivity density. The processes reduce sludge generated and are capable of effecting the metabolic oxidation at low dissolved oxygen concentrations.

The present invention provides solid bacterial growth support for wastewater treatment comprising microparticles coupled to and partly inserted on at least one surface thereof and having a microparticle coverage of about 20% to 100% of total surface of the solid bacterial growth support, and providing a biomass development surface at least about 1.57 times larger than the contact surface of a solid bacterial growth support without microparticles. The present invention also provides methods of using the solid bacterial growth support for wastewater treatment.

A water cleaning system 1 includes an aerobic region 90 including breeding water 9 containing organic matter and oxygen, an aerobic layer 6 linking with the aerobic region 90 and inhabited by aerobic bacteria, a facultative anaerobic layer 5 provided adjacent to the aerobic layer 6 and inhabited by facultative anaerobic bacteria, an obligatory anaerobic layer 4 provided adjacent to the facultative anaerobic layer 5, inhabited by obligatory anaerobic bacteria, and made of andosol 40, an anaerobic space 3 having an anaerobic environment, allowing the obligatory anaerobic bacteria inhabiting the obligatory anaerobic layer 4 and products therefrom to flow therein, and a tube 18 as linking means linking the anaerobic space 3 and the aerobic region 90.

Methods and apparatuses for overcoming biofilm diffusion in water treatment by the addition of the substrate flux within biofilm by advection or convection in order to overcome diffusional limitations.

A process in which a waste stream containing microbes and organic constituents is passed through a process environment comprising a solid media, microbes, and higher animals, such that some of the microbes and/or organic constituents within the waste stream are removed from the waste stream and some of the removed microbes are destroyed or consumed by the higher animals. The process environment may include an irrigated environment, a submerged environment, or a combined environment.

The present invention relates to an apparatus for collecting and treating wastewater (1) based on biodegradation-recombination-biodegradation process, comprising: a shell (1.1), the space inside the shell is divided into a first chamber (1.2) and a second chamber (1.3) by a divider wall (1.4), wherein: the first chamber (1.2) contains biological medium suitable for heterotrophic microorganisms growth; the second chamber (1.3) contains biological medium suitable for autotrophic microorganisms and heterotrophic microorganisms growth. The present invention also relates to a system for collecting and treating wastewater combining rainwater drainage used for building, comprising: at least one wastewater treatment apparatus (1) above; a indoor pipe system for collecting and transferring wastewater, rainwater comprising a main vertical pipe (2), substantially horizontal branch pipes; and a outdoor pipe system for transferring wastewater combining rainwater drainage comprising a horizontal pipe (3) for connecting the indoor pipe system for collecting and transferring wastewater, rainwater to at least one wastewater treatment apparatus (1) above.

Present invention relates to a method and apparatus for purification of water, said method comprises the steps of feeding the water into a reactor (4) through one or more inlet tubes (1) or inlet zones and feed water an substrate through carrier elements for bio film (5) which have a large protected surface (>200 m2/m3 carrier elements) and large pore volume (>60%), and that the carrier elements are fluidized for the removal of waste sludge, wherein the ratio of charge of the elements (5) by normal duty corresponds to an amount corresponding to 90%-100%, more preferred 92%-100%, and most preferred 92%-99% of the vet volume of the reactor (4), said carrier elements (5) is kept substantially at rest or hindered movement between the times surplus sludge is removed, and that the carrier elements being fluidised for removal of surplus sludge, said carrier elements (5) having a specific gravity in the area of 0.8-1.4, more preferred 0.90-1.1 and most preferred 0.93-0.97, and feed the treated water to one or more outlet zones (7) and one or more outlet tubes (2). The invention also comprises a reactor for performing the method.