15021 results about "Environmental protection" patented technology

The present invention relates to an integrated closed loop system for aquaculture in at least one culturing tank and using continuous bioreactor technology for the biological treatment and removal of organic material, nitrogen and phosphorous, comprising: an integrated, partially or wholly closed loop system for waste water treatment, where the water contains nitrogen containing compounds and/or substances, comprising at least one production unit of such nitrogen containing compounds and/or substances and using continuous bioreactor technology for the biological treatment and removal of organic matter, nitrogen and phosphorous from the said water at continuous flow, comprising: a) at least one suspended carrier bioreactor for bacterial growth under anoxic conditions to cause anaerobic denitrification, with one or several compartments, preceding b) at least one suspended-carrier bioreactor for bacterial growth under oxic conditions to cause aerobic nitrification, c) the denitrification taking place after the production unit, and d) the nitrification taking place prior to the production unit in a by-pass mode as part of the continuous flow.

This disclosure describes systems and methods for using environmental information in a hybrid positioning system. Some embodiments relate to a method for determining the position of a WLAN and satellite positioning system enabled device using characteristics of the environment in which the device is located, the method can include detecting WLAN APs in range of the device, obtaining environmental characteristics from a reference database based on the WLAN APs detected by the device, and determining whether to use the WLAN or satellite positioning system based on the environmental characteristics.

The invention discloses a microbiogenic cement and concrete and a production method thereof, which mainly mixes the Bacillus pasteurii solution for producing urease and an admixture of containing urea and mineral calcium salt and obtains the microbiogenic cement after reacting in a certain condition; adds admixture such as sand etc. into the mixture of mixing the bacterial solution and the mixture and reacts to generate the microbiogenic concrete. The microbiogenic cement or concrete of the invention can be used on protection and restoration of masonry ancient architectures and repair of cracks on concrete building or treatment of liquescent sandy soil. The invention provides a permanent method of safety, effectiveness and without environmental hazard for repair and strengthening technology of large quantity of civil architecture and structure; the invention has the advantages of the good effects, the good weatherability, the good permeability of gas and the good permeability of water and being especially suitable for treatment of the sandy soil; the invention is safe and environmental-friendly, and belongs to the environmental-friendly restoring material.

A process and plant for the thermocatalytic conversion of waste materials into reusable fuels and a fuel produced by the process, involving the steps of delivering melted waste material (11) to one or more pyrolysis chambers (26) via heated and valved manifolds (22) and effecting pyrolysis of the waste material into a gascous state in an oxygen purged and pressure controlled environment. Pyrolytic gases are, then transferred to a catalytic converter (29) where the molecular structure of the gaseous material is altered in structure and form, with gases then transferred to one or more condensers (30a) to distil and cool gases in to their respective fractions. After post pyrolysis treatment, fuel fractions thon form a useable fuel. Includes the melting of waste (plastic) material (11) before delivery into any of the pyrolysis chambers (26), making the movement of material into the catalytic tower (29) a semi-continuous operation, directing melted waste material into one or more, but preferably four, pyrolysis chambers (26a, b, c, d), making each chamber capable of independent operation, optionally mechanically removing waste char from the pyrolysis chamber (107) by use of an internet auger (112) or other suitable means.

This process is unique in photosynthetic carbon sequestration. An on-site biological sequestration system directly decreases the concentration of carbon-containing compounds in the emissions of fossil generation units. In this process, photosynthetic microbes are attached to a growth surface arranged in a containment chamber that is lit by solar photons. A harvesting system ensures maximum organism growth and rate of CO2 uptake. Soluble carbon and nitrogen concentrations delivered to the cyanobacteria are enhanced, further increasing growth rate and carbon utilization.

The invention discloses a desulfurization waste water zero discharging process. The process comprises a chemical dosing softening process and a microfiltration membrane treatment process; after incoming water is subjected to two-stage softening, nanofiltration and reverse osmosis separation are performed; sodium sulfate decahydrate with the purity of more than 99% is separated out by utilizing freezing crystallization; a reverse osmosis concentrated water regeneration sodium ion exchange device is utilized; sodium chloride with the purity of more than 98% is separated out by utilizing evaporative crystallization; solids are comprehensively utilized, and no liquid is discharged outside. The invention further provides a desulfurization waste water zero discharging system. According to the desulfurization waste water zero discharging process and the system, water in desulfurization waste water can be separated to be reutilized as domestic and industrial usable water, and other impurities in the desulfurization waste water are separated in solid form, so that pollutants harmful to the natural environment do not generate, and the problem that the desulfurization waste water pollutes the environment can be completely solved.

Relating to the technical field of resource recovery and recycling, the invention discloses a resource-based and harmless treatment method for kitchen waste. The method is directed at the problems of high salt content in fertilizer products, easy cause of soil salinization, and large equipment investment for anaerobic fermentation of total waste in existing kitchen waste treatment methods. The method comprises the steps of: (a) kitchen waste sorting; (b) water bath desalting: adding water, and conducting heating and stirring to dilute salt; (c) solid-liquid separation: dehydrating the waste; (d) solid material aerobic fermentation: crushing the dehydrated solid material into small particles, and conducting aerobic fermentation and drying treatment to obtain an organic fertilizer; and (e) waste liquid anaerobic fermentation: conducting oil-water separation on the waste liquid, recovering grease, subjecting sewage to anaerobic fermentation, making the produced biogas residue and biogas slurry into a liquid fertilizer, and taking the produced biogas as the fuel of a biogas boiler. The method provided by the invention is particularly suitable for resource-based and harmless treatment of kitchen waste.

This is a method of water and wastewater treatment for removal of pollutants in at least two-step process comprising (a) treatment of water producing at least partially treated intermediate effluent, (b) treatment of the intermediate effluent with a sacrificial metal and producing ions of said sacrificial metal, and providing very thoroughly treated effluent, (c) recuperating sacrificial metal ions generated in the step (b) and recycling the recuperated ions in the step (a), the recuperated and recycled ions from the step (c) improve treatment efficiency of step (a) by additionally removing pollutants from the intermediate effluent using recuperated ions, resulting in cleaner intermediate effluent, and, therefore, the pollutant loading rate in step (b) is reduced, intermediate effluent is further treated more thoroughly, and the demand for the sacrificial metal in step (b) is reduced. Step (a) can preferably be a biological, biological-abiotic, physical chemical, or combination of these steps. Step (b) is preferably a spontaneous cementation-driven electrochemical process. The combination of said steps (a), (b) and (c) produces a synergistic effect resulting in improved removal of said pollutants and in reduced need in said sacrificial metal. For example, a drinking quality water can be very economically and reliably obtained from wastewater. In addition to the superb treatment efficiency and reduced reagent requirements, the waste sludge from the system is beneficially disposed in-sewers, in sanitary landfills or on land.

The invention discloses a water system chargeable sodium-ion battery system. The system uses a concept of a 'rocking chair battery' of a lithium ion battery; and the entire battery system is formed by using sodium-based prussian blue matter as an embedded anode, titanium sodium phosphate as an embedded cathode, and sodium-contained inorganic salt solution as electrolyte. The system has the advantages of high discharge voltage, large specific capacity, good rate capability, long cycle life and the like, and further has the characteristics of green and environmental friendliness, and high security and no pollution. The system very hopefully becomes an electrochemical stored energy system with low price and environmental friendliness.

The active sludge-biomembrane compounding integral sewage treating method includes the first leading the sewage to be treated to the anoxic area through stirring for mixing sewage to be treated and active sludge, the subsequent leading the sewage to aerobic area with stuffing for aeration treatment with combined active sludge and biomembrane, and final leading the sewage to the precipitation area for natural deposition to separate sludge and water, leading out purified water, reflowing the mixed sludge liquid to the anoxic area and draining the residual sludge. The present invention also relates to the corresponding sewage treating apparatus. The present invention has the advantages of high treating capacity, resistance to impact load, simple operation, etc. and is especially suitable for use in medium and small towns.

The invention relates to a sewage disposal process monitoring and intelligent early-warning cloud system and a sewage disposal monitoring and early-warning method. The system comprises a sewage disposal process monitoring and intelligent early-warning cloud system body. The sewage disposal process monitoring and intelligent early-warning cloud system is characterized by comprising a distributed data collection terminal module and/or an on-spot photographing unit, and further comprising a process monitoring embedded data collection instrument and a cloud computing server, wherein the distributed data collection terminal module and the on-spot photographing unit are in communication with the process monitoring embedded data collection instrument separately, and the process monitoring embedded data collection instrument is in communication with the cloud computing server. The sewage disposal process monitoring and intelligent early-warning cloud system is simple in structure, all phases of a sewage disposal process can be monitored, multiple kinds of real-time data in a sewage biochemical process are provided for an operation unit, and with the assistance of the means of on-spot photographing, visual picture monitoring is conducted on a sewage disposal site, and the disposal effect of various biochemical disposal links is reflected in real time, which is beneficial to improving ofsewage biochemical disposal efficiency.

The invention relates to the technical field of environmental-protection engineering, in particular relates to a method for comprehensive treatment of kitchen waste, and is characterized in that the processing steps comprise kitchen waste pretreatment and insect abdominal conversion. The kitchen waste pretreatment process comprises automatic sorting, oil-water separation, biological fermentation, drying, steam condensation and ionization deodorization. The kitchen waste is subjected to automatic sorting, oil-water separation, biological fermentation, drying, steam condensation and ionization deodorization by devices to obtain a granular pretreated material, and the granular pretreated material is used for feeding insects and is completely converted by the insects to obtain insect frass and an insect product. Because of adopting of the method, the method has complete technology, is environmentally friendly and has no pollution during the treatment process, allows the treated material to accord with national relevant ecological standards, and has the advantages of harmless treatment, resource utilization, environmental protection, no pollution and the like.

The invention discloses a comprehensive treatment method for kitchen waste, town excrement and municipal sludge, relating to the technical field of harmless resourceful treatment for waste. The comprehensive treatment method comprises the following steps of: pretreating the kitchen waste; pretreating the excrement waste; pretreating the municipal sludge; homogenizing; adjusting; fermenting at a medium temperature; dehydrating biogas residue; and performing biogas treatment. The degradation rate of organic matters in the waste reaches over 80 percent.

An electronic cigarette provided with an accumulated e-liquid removal function and a method for removing accumulated e-liquid of an electronic cigarette. The electronic cigarette comprises an atomization assembly for atomizing e-liquid to produce smoke and a battery rod assembly configured for supplying power. The electronic cigarette is provided with a smoke channel for smoke to flow through, a heating assembly provided in the smoke channel and a control assembly for controlling the heating assembly which is configured for re-atomizing non-atomized e-liquid accumulated in the smoke channel. Implementation of the electronic cigarette provided with the accumulated e-liquid removal function and the present method for removing accumulated e-liquid provides the following beneficial effect: the heating assembly provided in the smoke channel is controlled by the control assembly to produce heat to allow e-liquid accumulated in the smoke channel to be re-atomized, thereby achieving the goal of removal of the accumulated e-liquid.

A systematic method for managing recyclable and non-recyclable waste. The method includes the step of identifying an amount of recyclable waste. The method also includes the step of determining a credit amount based on the amount of recyclable waste. The method further includes the step of reporting the credit amount to the customer. A container for use in a recycling system is also described. The container may include a structure for containing recyclable waste; and indicia may be disposed on the structure. The indicia identify the value of the recyclable waste contained by the structure.