| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 210170070 | Groundwater | 15 |
| 20080203000 | Air injection into the vadose zone to aerobically degrade volatile organic compounds in groundwater and inhibit subsurface landfill gas migration - This invention is directed to systems including one or more trenches or wells that include one or more perforated pipes through which a gas, such as air, can be injected into the vadose zone of ground located beyond a methaneogenic source to create a positive-pressure gas curtain and/or aerobic conditions in the vadose zone that inhibits migration of and/or facilitate the remediation of mobile volatile organic compounds that are capable of contaminating groundwater surrounding the methaneogenic source. | 08-28-2008 |
| 20090045116 | PLANT FOR THE DESALINATION/PURIFICATION OF BRACKISH WATER AND INDUSTRIAL WASTE WITH ZERO LIQUID DISCHARGE - The invention relates to a plant for the desalination/purification of brackish water and industrial waste with zero liquid discharge, including reverse osmosis ( | 02-19-2009 |
| 20090090666 | METHOD AND APPARATUS FOR GROUNDWATER REMEDIATION - A process for in situ groundwater decontamination within a subsurface region of earth includes: directing a liquid feed stream through a first conduit; injecting a treatment gas into the first conduit and/or a second conduit; discharging the liquid feed stream downwardly from the first conduit through an orifice restriction into the second conduit to form a confined plunging liquid jet gas and liquid contact zone in the second conduit; dissolving at least a portion of the treatment gas into the liquid feed stream in the contact zone to form an enhanced gas concentration liquid stream; passing the enhanced gas concentration liquid stream downwardly from the contact zone; and passing the enhanced gas concentration liquid stream from the second conduit into the groundwater. A device for performing this process is also disclosed. | 04-09-2009 |
| 20090266755 | Downhole Gravitational Water Separator - A gravity water separation system that may be integrated within a well completion. A diverted flowpath is provided for produced hydrocarbons, external to the completion tubing. As produced hydrocarbons travel through the diverted flowpath, they pass through separation stages wherein gravity separation ensues by migration through predefined flow ports which extend from produced oil “separation chamber(s)” into separated “water chamber(s).” | 10-29-2009 |
| 20100294705 | WATER DRAINAGE AND HARVESTING SYSTEM FOR AN ARTIFICIAL TURF ENVIRONMENT - A water drainage and harvesting system for use with an artificial turf field comprises permeable synthetic turf, permeable impact-absorbing sub-base material beneath the turf, a water collection basin below the field, a water reservoir below the collection basin, the basin and reservoir having an impermeable liner, a water tank in the reservoir, and a conduit from the tank that allows for filtered water to be pumped to the ground surface for reuse. The disclosure further relates to a method for the construction of such a water storage and conveyance system. | 11-25-2010 |
| 20110017648 | WATER-STORAGE AND WATER-PURIFICATION SYSTEM - The present invention relates to a water-storing and water-cleaning system. Said system is designed in such a manner that it can be used irrespective of location. It is used, inter alia, in agriculture, in horticulture and in reforestation. Said system comprises a reservoir ( | 01-27-2011 |
| 20110139695 | IN SITU PH ADJUSTMENT FOR SOLID AND GROUNDWATER REMEDIATION - The present invention provides a safe, low-cost, effective composition and method for the remediation of contaminated subsurface material, the composition comprising solid alkaline material preferably in combination with stabilizing agents, that can be used to increase or maintain the pH of a subsurface zone and improve the performance of in situ treatment processes. | 06-16-2011 |
| 20110210050 | FORMULATION OF NOVOLAK RESINS FOR ENHANCING THE ACID RESISTANCE OF POLYAMIDE COMPOSITIONS - Novolak resins are incorporated for enhancing the acid resistance of polyamide compositions. Polyamide compositions containing such novolak resins are useful for producing various plastic shaped articles, such as calibrated particles or injection-molded parts, and are particularly useful for the recovery of sludge, liquids, and gases present in underground reservoirs, especially in the field of hydrocarbon extraction such as crude oil or natural gas. | 09-01-2011 |
| 20130075316 | METHOD OF TREATING WATER POLLUTANT - A water pollutant processing method to adsorb, oxidize and activate water pollutants includes using an adsorbent with low oxidation number (zeolite), an activator (from industrial wastes, such as BF slags and BOF slags) and a persulfate to process polluted water and underground water. The method includes an integrated processing system including the persulfate, adsorbent with low oxidation number and iron-containing activator. The integrated processing system not only possesses an adsorbing capability, but also an oxidizing capability using transition metal such as iron on the surface of the activator. The system can not only accelerate removal of water pollutants, but also delay movement of the pollutants to further reduce threat of pollutant spreading to downstream. BF and BOF slags are industrial wastes and the present invention also provides a channel for reusing the wastes. | 03-28-2013 |
| 20140246366 | Method and Apparatus for Treating Perfluoroalkyl Compounds - A method of treating a site containing perfluoroalkyl compounds (PFCs) is described. The method and apparatus treats the site with fine oxygen/ozone gas bubbles delivered with a hydroperoxide coating and solution which is activated by self-created temperature or applied temperature to raise the oxidation potential above 2.9 volts. Once begun, the reaction is often self-promulgating until the PFC is exhausted, if PFC concentrations are sufficiently elevated. | 09-04-2014 |
| 20150021251 | DOUBLE-LAYER PERSULFATE SUSTAINED-RELEASE MATERIAL AND ITS PREPARATION METHOD - The present invention involves a persulfate-release material used in the filler of permeable reactive barrier (PRB). This material presents double-layered structure characteristic: inner- and outer-layers are consisted of persulfate, cement, sand and water with different mass ratio. Two different types of moulds are used for the regulation of the shape-of the two-layer structures, which guarantees the stability and reproducibility of its structures and properties. During the whole released process, the released rate become more uniform and stable by the use of this material. During the whole service period, the change of the released rate is very slow, and the service lifetime can be 1-10 years. This invention can both reduce the initial released rate and improve the later released rate, and thus the whole released rate can be more uniform, which can be an important method to promote the efficiency of the persulfate toward engineering application. | 01-22-2015 |
| 20150108053 | Water Purification and Storage System, Water-Filtering Well and Polygonal Building Block - A water purification and storage system comprises a water storage container, a covering plate and an impermeable wall. The water storage container is formed by a plurality of tangentially connected polygonal water-filtering wells having well walls of a water-permeable structure, and an impermeable layer is arranged at the bottom of the well. At least one water-filtering well is a water output well. The covering plate is arranged at the upper portion of the water storage container, and comprises an impermeable covering plate arranged at the upper portion of the water output well and a water-permeable covering plates arranged at the upper portions of the remaining water-filtering wells. The impermeable wall is arranged around the water storage container. The system is suitable for the collection and purification of rain water. Also disclosed are a water-filtering well for use in the system, and a polygonal building block for the water-filtering well. | 04-23-2015 |
| 20150337660 | OPENCAST COAL MINE UNDERGROUND WATER RESERVOIR - An opencast coal mine underground water reservoir comprising an impermeable layer and, provided below the impermeable layer, a water storage space and a purification layer. The water storage space comprises a first water storage space and a second water storage space. The purification layer comprises a first purification layer and a second purification layer. The first purification layer is provided horizontally in the water storage space and divides the water storage space into the first water storage space and the second water storage space. The first water storage space is provided below the impermeable layer and between same and the first purification layer. The second water storage space is provided below the first water storage space and the bottom of the second water storage space is provided at the bottom of the opencast coal mine underground water reservoir. The second purification layer is provided vertically within the second water storage space. The present invention, by constructing the opencast coal mine underground water reservoir, prevents wastage of water resource produced during a coal mining process, and by providing the purification layer in the opencast coal mining underground water reservoir, implements repeated purification of water, prevents environmental pollution, and implements a water conservation mining policy during the coal mining process. | 11-26-2015 |
| 20150344327 | Hybrid water treatment agent of biogenic manganese oxide nanoparticles and activated carbon, preparation method thereof, and water treatment system and on-site underground water treatment system using the same - The present invention relates to a relates to a water treatment agent, a preparation method thereof, and a water treatment system and an on-site underground water treatment system using the same, and more particularly, to a water treatment agent including an activated carbon support, and manganese oxide nanoparticles immobilized onto the activated carbon support, having a particle size less than or equal to 1,000 nm, and formed by respiration and metabolism of manganese oxidizing bacteria, a preparation method thereof, and a water treatment system and an on-site underground water treatment system using the same. | 12-03-2015 |
| 20170232488 | GROUNDWATER REMEDIATION SYSTEMS, DEVICES, AND METHODS | 08-17-2017 |
