biological water treatment plant Applications

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Biological wastewater processes for municipal treatment plants

by Biowater Technology     based in Cumberland, RHODE ISLAND (USA)

Biowater have knowledge and competence to help in designing and building new systems and upgrade existing infrastructure based on biotechnology as CFIC, MBBR and IFAS solutions.

The Company offers cost-effective solution that allows municipal plants to both increase their treatment capacity and upgrade the effluent quality with minimal civil works.

Municipal wastewater solutions for biological treatment industry

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

A well-designed wastewater plant starts with your effluent requirements and an energy-efficient biological process. WesTech has multiple biological process options to match your application and preference. From trickling filters to oxidation ditches, WesTech`s biological process equipment will give you the effluent quality you need and the foundation for a successful wastewater plant.

Real-time Control System for Wastewater Treatment Plants

by AppliTek NV - Environmental Analysis Division     based in Nazareth, BELGIUM

Wastewater treatment plants (WWTP) are subject to large variation in flow and load, not to speak of uncertainties on the composition of the incoming wastewater. On top of that, the activated sludge treatment process, as used by the vast majority of treatment plants, is difficult to control due to the complex behaviour of the biological process. Nevertheless WWTPs are run 24/7, with operators and management challenged to meet ever tightening environmental regulations.

In order to meet the operational demands of modern-day plants, a new control system was developed. Proprietary control algorithms were introduced based on a large set of data from nutrient measurements in various WWTPs. The customer`s benefits are twofold: (1) achieving optimum effuent quality and, at th same time, (2) lowering energy needs and dosing of commidity chemicals.

Sulfide Oxidation with Hydrogen Peroxide (H2O2)

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

Sulfide Odor Control Sulfide is found throughout the environment as a result of both natural and industrial processes. Most sulfide found in nature was produced biologically (under anaerobic conditions) and occurs as free hydrogen sulfide (H2S) - characterized by its rotten egg odor. We are most likely to encounter biogenic H2S in sour groundwaters, swamps and marshes, natural gas deposits, and sewage collection/treatment systems. Manmade sources of H2S typically occur as a result of natural materials containing sulfur (e.g., coal, gas and oil) being refined into industrial products. For a variety of reasons - aesthetics (odor control), health (toxicity), ecological (oxygen depletion in receiving waters), and economic (corrosion of equipment and infrastructure) - sulfide laden wastewaters must be handled carefully and remediated before they can be released to the environment. Typical discharge limits for sulfide are < 1 mg/L. Sulfide Treatment Alternatives There are dozens of alternatives for treating sulfide laden waters, ranging from simple air stripping (for the low levels present in groundwaters) to elaborate sulfur recovery plants (used to treat several tons per day at refineries and coal burning power plants). There are processes based on biology (using compost filters, scrubbing media, or inhibition/disinfection), chemistry (oxidation, precipitation, absorption, and combination), and physics (adsorption, volatilization, and incineration). Each process occupies a niche which is often defined by the scale and continuity of treatment, whether the sulfide is in solution or is a gas, the concentration of sulfide involved, and the disposition of the sulfide containing medium. However, for reasons relating to convenience and flexibility, chemical oxidation (using hydrogen peroxide) continues to grow in its scope of application. Treatment with Hydrogen Peroxide While other peroxygens such as permonosulfuric (Caro’s) acid, peracetic acid, and persulfates will oxidize sulfide, their use for this application is overkill. Hydrogen peroxide (H2O2) is considerably simpler and more cost-effective. H2O2 may control sulfides in two ways, depending on the application: Prevention - by providing dissolved oxygen which inhibits the septic conditions which lead to biological sulfide formation; and Destruction - by oxidizing sulfide to elemental sulfur or sulfate ion.

Wastewater treatment solutions for controlling filamentous microorganisms

by QM Environmental Services Ltd.     based in The Hague, NETHERLANDS

Wastewater treatment plants can on occasion experience problems with settling of the biological sludge in the secondary clarifier. Often this problem is caused by the abundant presence of filamentous microorganisms.

Waste to Energy

by Babcock & Wilcox MEGTEC     based in De Pere, WISCONSIN (USA)

We can treat the air streams from waste management plants, MBT (Mechanical Biological Treatment) reception and composting areas, Waste Water Treatment Plants (WWTP), Refuse Derived Fuel (RDF) Plants, gasification of waste, syngas, torrefaction, gas engines and biogas upgrading. In waste management plants and WWTP, we remove the odors that may be causing a nuisance to neighbors, with bioreactors using Biomass to degrade odorous components and where odors are particularly intractable or VOC emissions higher, thermal oxidizers to meet prescribed emission limits and odor levels. In RDF Plants, Syngas, Gasification, Gas Engine and Biogas Upgrading applications, we employ thermal oxidizers, particulate removal and DeNOX systems, for the control of VOC, NOx, CO and particulates to prescribed emission limits.

Wastewater solutions for municipal sewer control

by Real Tech Inc.     based in Whitby, ONTARIO (CANADA)

Problem: A significant portion of the operational costs of a conventional municipal wastewater treatment plant employing an aerobic biological treatment unit comes from electricity costs associated with aeration. In many cases, the aeration rates are kept at the maximum level to ensure that the plant’s effluent is in compliance with the regulations. The critical parameter for regulatory purposes and treatment efficiency, BOD, takes 5 days to measure through standard methods providing almost no value to the plant operators in terms of adjusting aeration rates and chemical dosing.

Biofiltration

by AquaBiotec     based in Paris, FRANCE

Biological Aerated Upflow Filtration (BAF) for high efficient Waste Water Treatment in Refinery Industry with more than 20 reference plants and more than 20 years of experience

Biofiltration

by AquaBiotec     based in Paris, FRANCE

Biological Aerated Upflow Filtration (BAF) for high efficient Waste Water Treatment in Pulp & Paper Industry with more than 20 reference plants and more than 20 years of experience

Biofiltration

by AquaBiotec     based in Paris, FRANCE

Biological Aerated Upflow Filtration (BAF) for high efficient Waste Water Treatment in Chemical & Pharmaceutical Industry with more than 20 reference plants and more than 20 years of experience

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