Nutrient Removal Applications

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  • Category: Water & Wastewater ×

  • Subcategory: Nutrient Removal ×

Sediment and Nutrient Loads

by FTS     based in Victoria, BRITISH COLUMBIA (CANADA)

SedEvent is an event-driven, automatic grab sampling system that provides a simple and practical method of accurately determining suspended sediment and nutrient loads. While suspended sediment concentration (SSC) cannot be directly measured accurately or reliably, turbidity has been shown to be an excellent surrogate for SSC. Turbidity is caused by suspended particulate matter such as clay, silt, algae, organic and inorganic chemicals and acids like fertilizers, and microscopic organisms like harmful bacteria. These contents give water its cloudy or turbid appearance, and turbidity in natural waters is recognized as an important indicator of natural health. Measuring suspended sediment concentrations used to be labor-intensive, costly, inaccurate and impractical. SedEvent not only makes it possible and practical, it makes it simple.

Water Treatment Solutions for Nitrate Removal

by Adedge Water Technologies, LLC     based in Buford, GEORGIA (US) (USA)

Most nitrogenous materials in natural waters tend to be converted to nitrate, so all sources of combined nitrogen, particularly organic nitrogen and ammonia, should be considered as potential nitrate sources. Primary sources of organic nitrates include human sewage and livestock manure, especially from feedlots. The primary inorganic nitrates which may contaminate drinking water are potassium nitrate and ammonium nitrate both of which are widely used as fertilizers. According to the Toxics Release Inventory, releases to water and land totaled over 112 million pounds from 1991 through 1993.

Wastewater treatment upgrades & extensions

by DEVISE ENGINEERING S.A.     based in Athens, GREECE

The time comes that a Sewage Treatment Facility Municipal or Industrial may require significant upgrading or even an extension. The upgrade usually concerns improvement process performance (removal rates) and efficiency as well as replacement of mechanical equipment. The plant expansion usually refers to an increase of the capacity or to the extension of treatment ability, ie adding Nutrient Removal.

Nitrification & Denitrification

by Cleveland Biotech Ltd.     based in Stockton on Tees, UNITED KINGDOM

Waste Water Treatment Plants, Fish ponds or tanks and Odours.

Industrial water Nitrate removal from drinking water

by PuriTech Ltd     based in Herentals, BELGIUM

Since nitrates are very soluble and do not bind to soils, they have a high potential to migrate to groundwater. For the short-term, excessive levels of nitrate in drinking water have caused serious illness and sometimes death. The serious illness in infants is due to the conversion of nitrate to nitrite by the body, which can interfere with the oxygen-carrying capacity of the child’s blood. This can be an acute condition in which health deteriorates rapidly over a period of days. Symptoms include shortness of breath and blueness of the skin.

Applications and Air Pollutants Removed in the Fertilizer Industry

by Bionomic Industries Inc.     based in Mahwah, NEW JERSEY (USA)

Wet Scrubbers, dry collectors, wet electrostatic precipitators and complete engineered systems for urea, MAP, DAP, TSP and AN Plant rotary dryers and coolers, reactors and ammoniation granulators, pug mills, rock acidulation, curing, storage and material handling operations to control emissions of: particulate, including phosphate rock dust, ammonium phosphate, ammonia, nitric acid, NOx, phosphoric acid, hydrogen fluoride, silicon tetrafluoride, sulfuric acid, removal. Complete systems for scrubbing and recovery/reconcentration of fluorosilicic acid up to 25% concentration.

Industrial solutions for food and beverage industry

by WesTech Engineering, Inc.     based in Salt Lake City, UTAH (USA)

Water is a precious and crucial resource in the process of food and beverage production. From screening to tertiary treatment, biological nutrient removal to water reclamation, WesTech equipment is designed to maximize efficiencies and minimize downtime, all while meeting the ever-tightening EPA regulations.

Filamentous Bulking Control with Hydrogen Peroxide

by USP Technologies     based in Atlanta, GEORGIA (US) (USA)

Basis of Control with Hydrogen Peroxide Hydrogen peroxide may be used to correct a serious filamentous bulking situation or, preferably, to prevent one from occurring until adjustments can be made to remove the cause. When applied to the return activated sludge, hydrogen peroxide supplies dissolved oxygen which helps restore the microbial activity necessary for effective operation, while selectively oxidizing the filaments which retard settling. The effective dose of hydrogen peroxide is a function of time and concentration, and varies from plant to plant. To correct a serious bulking problem, immediate results may be obtained by adding 100 - 200 mg/L H2O2 to the biosolids recycle line. Once control of bulking is obtained, the dose may be reduced to 25 - 50 mg/L H2O2 to prevent re-occurrence. Practical Considerations Filamentous bulking of municipal activated sludge is not a normal occurrence, and suggests more fundamental problems may be at work (e.g., low dissolved oxygen, high sulfide input, heavy organic loading, nutrient imbalance, improper sludge age, or rapid changes in influent characteristics). Consequently, the use of chemicals such as hydrogen peroxide to control bulking should be pursued in concurrently with more fundamental corrective measures.

Process Design

by Yates Environmental Services     based in Spokane, WASHINGTON (USA)

Custom water and wastewater engineering, consulting and process design services to prevent air, land, water and environmental pollution. We rework systems as processes change and troubleshoot where necessary to bring systems into compliance. • High purity and process water • Biological nutrient removal • Solids treatment • Toxicity reduction • Industrial treatment • Advanced oxidation and alternative disinfection • Effluent reclamation and reuse • Land application systems • Natural treatment systems • Hydrogen sulfide and odor control • Decentralized treatment systems • Process optimization / operations assistance • Conceptual and strategic water planning

Odor Control

by AgriAir Equipment     based in Mukilteo, WASHINGTON (USA)

AgriAir purifiers will rid the air of volatile organic substances that may be associated with indoor growing operations. Our line of air purifiers is designed to remove odors and sanitize the air by destroying contaminants at the source, not masking them. Available in a variety of models that are designed to suit any commercial operation. Large or small-scale grow, AgriAir has a purifier designed to meet your garden’s demands.Indoor cultivation always gives the grower the upper hand. In indoor growing, you have the full control of the environment for your plants. Light, water, nutrients, temperature and humidity can all be controlled. However, you also need to control the odor of plants growing indoors.

Intensive smell

by Chemisch Thermische Prozesstechnik GmbH / CTP Air Pollution Control     based in Graz, AUSTRIA

CTP's convincing solution: The closed circuit process of complete elimination of ammonia without any additional reducing agent (which would have had to be ordered, stored and injected into the waste gas) is patented by CTP.

Gas monitoring instruments and systems for nitric acid process

by Gasmet Technologies Oy     based in Helsinki, FINLAND

Modern production method of nitric acid production may lead to generation of several different gaseous emission components, such as nitrogen oxides (NOx), ammonia NH3 and nitrous oxide N2O. Nitrogen monoxide is an intermediate gaseous product in manufacturing of nitric acid HNO3. NO is formed in a catalytic reaction between ammonia and molecular oxygen O2. But undesirable side reactions may result in formation of nitrogen dioxide NO2 and nitrous oxide N2O. The NO and NO2 emissions can be reduced by use of Selective Catalytic Reduction unit (SCR), which deploys ammonia gas NH3 to limit emissions of NO and NO2. A modern nitric acid plant needs to monitor the emissions of these gases.

Filtration solutions for on-site treatment industry

by Filtralite Saint-Gobain Byggevarer As     based in Alnabru, NORWAY

Filter beds with pre-filter are simple, efficient and environmentally friendly ways of treating domestic wastewater from detached houses and holiday homes. The requirements related to operation and maintenance are few in relation to traditional compact plants. These systems can also be adapted to suit clusters of houses, schools, kindergartens, small companies etc.

Industrial water Ammonia & Arsenic removal from water

by PuriTech Ltd     based in Herentals, BELGIUM

Nitrogen is a nutrient essential to all forms of life as a basic building block of plant and animal protein. Nevertheless, too much of it can be toxic. The processes used for the removal of ammonium ions from drinking waters include ion exchange. PuriTech`s ION-IX system can be broken up into 4 distinctive zones with each zone operating continuously. The resin is initially loaded with the Ammonia ions (and partially calcium and magnesium)in the adsorption zone. As the ION-IX multi-port valve rotates, the resin that has been saturated with Ammonia ions (and some calcium and magnesium ions)moves into a one-bed displacement zone with softened water to ensure hard water does not cause precipitation within the multi port valve.

Water Testing for Environmental Applications

by Myron L Company     based in Carlsbad, CALIFORNIA (USA)

Keeping the water in our lakes, rivers, and streams clean requires monitoring of water quality at many points as it gradually makes its way from its source to our oceans. Over the years ever increasing environmental concerns and regulations have heightened the need for increased diligence and tighter restrictions on wastewater quality. Control of water pollution was once concerned mainly with treating wastewater before it was discharged from a manufacturing facility into the nation`s waterways. Today, in many cases, there are restrictions on wastewater that is discharged to city sewer systems or to other publicly owned treatment facilities. Many jurisdictions even restrict or regulate the runoff of stormwater — affecting not only industrial and commercial land, but also residential properties as well.

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