Patent application number | Description | Published |
20100060887 | METHOD FOR DETECTING MEMBRANE MODULE FLAW WITH THE APPLICATION OF FLUORESCENT PARTICLES - Provided is a method for detecting a membrane module flaw, including: preparing fluorescent particles having a size of 0.5 to 1.5 μm using silica; injecting the fluorescent particles in a concentration of greater than 0 mg/mL and less than 0.1 mg/mL or equal into a membrane module used in a sewage and wastewater treatment process; operating a pump to apply a pressure such that the fluorescent particles injected into the membrane module leak to the outside of the membrane module, in case that the membrane module has a flaw; acquiring a digital image of the membrane module; and discriminating a colored portion from a non-colored portion in the digital image. | 03-11-2010 |
20110100905 | RIVER WATER PURIFICATION APPARATUS AND METHOD USING TREATMENT SOIL LAYER AND PERMEABLE FILTERING MEDIUM LAYER - Provided are an apparatus and a method for river water purification using a treatment soil layer and a permeable filtering medium layer. The river water purification apparatus includes a treatment soil layer and a permeable filtering medium layer which are sequentially and alternately stacked. The treatment soil layer includes a plurality of unit soil layers which are arranged at intervals. A reservoir part which stores a predetermined amount of river water and supplies the river water to an inside of the unit soil layer is provided in an upper end part of the unit soil layer. The permeable filtering medium layer has a higher hydraulic conductivity than that of the treatment soil layer. The river water purification apparatus increases a treatment flux of river water regardless of a coefficient of water permeability of soil and effectively removes nitrogen, phosphorus and nutrient salts by stably forming an anaerobic condition. | 05-05-2011 |
20130168325 | APPARATUS FOR PHOSPHOROUS REMOVAL FROM WASTE WATER - Provided are an apparatus for removing phosphorous from wastewater including: a first coagulation sedimentation unit including a first rapid mixing tank, a first flocculation tank and a first sedimentation tank; and a second coagulation sedimentation unit including a second rapid mixing tank, a second flocculation tank and a second sedimentation tank, and a method for removing phosphorous using the same. The first rapid mixing tank stirs wastewater and an inorganic coagulant with low basicity at high speed and the second rapid mixing tank stirs the treated water supplied from the first sedimentation tank and an inorganic coagulant with high basicity at high speed. As a result, removal of phosphorous from the wastewater is maximized and coagulation and sedimentation may be optimized through control of metal content in the inorganic coagulants added to the first rapid mixing tank and the second rapid mixing tank. | 07-04-2013 |
20130334143 | APPARATUS AND METHOD FOR PHOSPHOROUS REMOVAL FROM WASTE WATER USING DOLOMITE - The present disclosure provides apparatus and method for phosphorous removal using dolomite by mixing an inorganic coagulant and dolomite together to improve the phosphorous removal efficiency and controlling pH, which has been lowered due to the use of the inorganic coagulant, close to the neutral by means of dolomite to improve the economic feasibility and minimize an additional neutralizing process. | 12-19-2013 |
20140124439 | APPARATUS AND METHOD FOR ANAEROBIC WASTEWATER TREATMENT WITH MEMBRANE - The present disclosure relates to an apparatus and method for anaerobic wastewater treatment with a membrane, which effectively generates biogas and suppresses fouling on a membrane surface by performing anaerobic treatment to wastewater. The apparatus for anaerobic wastewater treatment with a membrane includes: an anaerobic reactor for performing anaerobic treatment to wastewater and generating biogas; an anaerobic membrane bio-reactor for filtering wastewater discharged from the anaerobic reactor by means of a membrane module and providing an additional anaerobic treatment space for the wastewater; submerged membrane modules provided in the anaerobic membrane bio-reactor to filter wastewater; rotating disks provided at both sides of the submerged membrane module to induce turbulence to the wastewater by means of rotation; and a second media provided in the anaerobic membrane bio-reactor to circulate according to the flow of the wastewater so that foulants on a surface of the membrane module are detached. | 05-08-2014 |
20140183405 | FLOATING TYPE ADSORBENT FOR REMOVAL OF PHOSPHATE IN AQUEOUS SOLUTION AND METHOD FOR FABRICATING THE SAME AND METHOD FOR REGENERATION OF THE SAME - The present disclosure relates to a floating type adsorbent for removal of phosphate that can effectively remove phosphate from aqueous phase through reaction between an amine function attached on the surface of a sponge and phosphate. This adsorbent can be regenerated by desorbing the adsorbed phosphate, a method for fabricating same and a method for regeneration the floating type adsorbent for removal of phosphate. The floating type adsorbent for removal of phosphate according to the present disclosure is fabricated by immersing a sponge in a mixture solution of an amine precursor and anhydrous toluene to form an amine function on the surface of the sponge. The amine precursor may be 3-aminopropyltriethoxysilane (APTES) and the APTES and the anhydrous toluene may be mixed at a volume ratio of 0.5-1:1. | 07-03-2014 |
20150232360 | APPARATUS AND METHOD FOR ANAEROBIC WASTEWATER TREATMENT WITH MEMBRANE DISTILLATION - Disclosed is an apparatus and method for anaerobic wastewater treatment, which combines membrane distillation and biological treatment to improve treated water quality, performs anaerobic treatment to the wastewater to generate bio-gas and effectively restrain contamination of a membrane surface. The apparatus comprises a bio-reactor, submerged membrane modules, rotary disks and fluidizable media, wherein the bio-reactor is configured to give a space for filtration and biological treatment of wastewater and operated under an anaerobic condition, wherein the modules are provided in the bio-reactor to filter the wastewater, and wherein the rotary disks are provided at both sides of the module to induce turbulence of the wastewater and moving of the fluidizable media, wherein a channel is provided in the modules so that a cooling water flows therein, moisture of the wastewater is evaporated due to a temperature difference of the wastewater and the cooling water, moved to the channel. | 08-20-2015 |