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Aquaponic Systems: Nutrient recycling from fish wastewater by
Aquaponic Systems: Nutrient recycling from fish wastewater by

... nutrient recycling. The original concept was established by aquaponic producers [3,4], which achieved remarkable fish to plant production ratios in market-scale production systems. For each kilogram of fish produced in feedlot aquaculture, the nutrients in the resulting wastewater allowed a vegetabl ...
Changing the spatial location of electricity generation to increase
Changing the spatial location of electricity generation to increase

... For each hour in the episode, a PowerWorld model was used to determine the generation level (MWh) at each power plant in ERCOT that minimized the total cost of electricity generation subject to meeting demand and including line losses, transmission line capacity limits, and EGU maximum and minimum g ...
oceanTank Essentials packet complete
oceanTank Essentials packet complete

... Chemical Filtration is achieved with carbon, resins or other media which remove dissolved waste materials such as organics (fish waste, decaying plant material, etc.) that can cause odors and discolorations of the aquarium water. Chemical medias placed in a filter can also remove toxins, phosphates, ...
Research Proposal
Research Proposal

... procedure from chapter 4 of Simplified Laboratory Procedures for Wastewater Examination (1976). The Sampling regime was the same as nutrient sampling above; triplicate samples were taken from Post UV, Effluent, and CA1 or AN1 on a regular basis, while comprehensive sampling took place occasionally. ...
Dissolved Oxygen
Dissolved Oxygen

... oxygen level indicates better water quality. If dissolved oxygen levels are too low, some fish and other organisms may not be able to survive. Much of the dissolved oxygen in water comes from oxygen in the air that has dissolved in the water. Some of the dissolved oxygen in the water is a result of ...
The African Lungfish (Protopterus dolloi
The African Lungfish (Protopterus dolloi

... larvae) three times per week, but non-air-exposed lungfish (aquatic) were starved for 3–5 d before experiments to minimize possible artifacts that feeding might have introduced to ion or 3H-H2O measurements. This also permitted more meaningful comparisons between aquatic and air-exposed lungfish, wh ...
stormwater monitoring: pollutants, sources, and
stormwater monitoring: pollutants, sources, and

... As part of the federal government’s National Pollutant Discharge Elimination System Permit (NPDES) program, administered in South Carolina by the Department of Health and Environmental Control (SCDHEC), Richland County is required to apply stormwater pollution control measures. In particular, Richla ...
Subcritical Water Extraction of Polysaccharides Using a Semi
Subcritical Water Extraction of Polysaccharides Using a Semi

... furfural, and hydroxymethylfurfural are also capable to absorb spectrum at the same wavelength. Figure 2 displays a prominent spectrum in a wavelength range of 280 nm, where peak spectra near 280 nm corresponds to aldehyde groups which generated from polysaccharides hydrolysis during the extraction ...
Insulation Engineered For DUCT SYSTEMS
Insulation Engineered For DUCT SYSTEMS

... Armaflex is a dust and fibre free, formaldehyde free, duct insulation material with Ozone Depletion and Global Warming Potential ratings of 0. Pairing excellent thermal values with a closed cell structure Armaflex can meet the building regulations energy efficiency targets for ductwork without any r ...
Determination of isotopic ratios of uranium (U-235/
Determination of isotopic ratios of uranium (U-235/

... isotopes of nitrogen (2). These elements are very difficult to determine because they are very sensitive to contamination, so very specific laboratory conditions in addition to complex and expensive techniques are necessary for their quantification. In the ICP-MS field, other stable isotopes, such a ...
Determination of Environmental Benefit application form DEB
Determination of Environmental Benefit application form DEB

... I certify that the treatment equipment is or will be used exclusively to treat effluent from a wastewater treatment facility, which effluent would otherwise have been legally discharged to the waters of the State, for purposes of reuse in an industrial process. I certify that the conveyance equipmen ...
Homeowner`s Guide to Septic Systems
Homeowner`s Guide to Septic Systems

... the tank and traveling into the drainfield area. Screens are also recommended to keep solids from entering the drainfield. The wastewater exits the septic tank and is discharged into the drainfield for further treatment by the soil. Microorganisms in the soil provide final treatment by removing harm ...
Section VIII Risk assessment and regulation
Section VIII Risk assessment and regulation

... and ensuring that management practices and monitoring and treatment technologies will be installed and will function consistently. Controls and practices at the source, the feedlot and pastures, function by managing animal health to reduce the possibility that the animals are carriers or breeding gr ...
MBR - American Membrane Technology Associations
MBR - American Membrane Technology Associations

... will typically have a tighter requirement for fine screening. Fine screens are sized for peak flow with one screen out of service to prevent overflow or bypass of unscreened wastewater. Washing and compaction of screening solids are recommended where practical to reduce the water and organic content ...
CetylcideII
CetylcideII

... after 10 minutes, rinsed, dried, and kept in a clean noncontaminated receptacle. Prolonged soaking may cause damage to metal instruments. For Disinfecting Hard, Non-porous Fiberglass Bath and Therapy Equipment: To remove body oils, dead tissue, soil and all other buildups or organic matter on inanim ...
Marco Schmidt Technische Universität Berlin, A59, Section Building
Marco Schmidt Technische Universität Berlin, A59, Section Building

... This represents 500% - 900% of natural precipitation as runoff from paved areas, or about 40-50 times more than natural conditions. For example, a park area in Berlin receives 600 mm of precipitation annually. A grassy area without any artificial irrigation would typically evaporate about 500 mm int ...
Mixed Liquor Volatile Suspended Solids
Mixed Liquor Volatile Suspended Solids

... sodium in relations to calcium and magnesium). Degradation: The breaking down of one substance into simpler substances. An example would be that in wastewater treatment bacteria break down organic matter (BOD) into end products of carbon dioxide and water. Detention time (also known as retention tim ...
(2010) A Water Accounting Framework for the Minerals Industry
(2010) A Water Accounting Framework for the Minerals Industry

... about the water resources of the operational facility as well as any conditions that have an impact on the management of those water resources. As a guide they should contain a description of the geographical location of the operational facility, details of the catchment, climatic conditions during ...
REGIMEN TITLE: Mitotane (Lysodren®) and EDP
REGIMEN TITLE: Mitotane (Lysodren®) and EDP

... Because of its adrenolytic activity and its action on cortisol metabolism, mitotane treatment induces a state of potentially permanent functional adrenal insufficiency, which necessitates hormone supplementation. Hormone supplementation should be continued even after stopping Mitotane treatment unle ...
Background material for 124 experiment 2
Background material for 124 experiment 2

... dependence on the nature of the absorbing material and on the wavelength of the light used. The absorbance and transmittance of a solution are extensive variables since their values depend on the path length which depends on the amount of solution one has. The absorbance and transmittance at fixed p ...
References
References

... reliable indicators of them in drinking and recreational waters. Culture and molecular methods are available to detect enteric viruses in water, but they are difficult, expensive and slow to yield results when attempting to detect all enteric viruses. Coliphages are viruses of E. coli which is a bac ...
ijlbpr_52
ijlbpr_52

... In general, industrial wastewaters contain suspended, colloidal and dissolved (mineral and organic) solids. In addition, they are either excessively acidic or alkaline in nature and they may contain high or low concentrations of chromophoretic compounds. These wastes may contain inert, organic or to ...
Emulsifying Ointment 50% w/w in Purified Water
Emulsifying Ointment 50% w/w in Purified Water

... The skin dries out when too much water evaporates from its surface. This increases as we get older and is made worse by washing, because hot water and soap remove the layer of natural oil on the skin surface. Moisturisers such as emulsifying ointment are helpful for very dry skin conditions, particu ...
ANITA™Mox - Veolia Water Technologies
ANITA™Mox - Veolia Water Technologies

... ANITA™Mox solutions are especially suited to: • Bring into compliance wastewater treatment plants with existing sludge digestion and facing a significant rise in the nitrogen content of their raw water. • Wastewater treatment plants wishing to add sludge digestion that may or may not be combined w ...
Textile Industry Management Need to Play Vital Roles in Order to
Textile Industry Management Need to Play Vital Roles in Order to

... discharged into sewers and drains without any treatment. The textile spinning, knitting, dyeing and apparel industries of Gazipur and Narayanganj generate large amount of effluents, sewage sludge and solid contaminated particles everyday which are being directly discharged into the surrounding chann ...
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Ultraviolet germicidal irradiation



Ultraviolet germicidal irradiation (UVGI) is a disinfection method that uses short-wavelength ultraviolet (UV-C) light to kill or inactivate microorganisms by destroying nucleic acids and disrupting their DNA, leaving them unable to perform vital cellular functions. UVGI is used in a variety of applications, such as food, air, and water purification. UV-C light is weak at the Earth's surface as the ozone layer of the atmosphere blocks it. UVGI devices can produce strong enough UV-C light in circulating air or water systems to make them inhospitable environments to microorganisms such as bacteria, viruses, molds and other pathogens. UVGI can be coupled with a filtration system to sanitize air and water.The application of UVGI to disinfection has been an accepted practice since the mid-20th century. It has been used primarily in medical sanitation and sterile work facilities. Increasingly it has been employed to sterilize drinking and wastewater, as the holding facilities are enclosed and can be circulated to ensure a higher exposure to the UV. In recent years UVGI has found renewed application in air purifiers.
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