air treatment system Articles | Environmental XPRT

Nitrification processes in scrubbing liquid of an exhaust air treatment system of a large-scale pig housing facility

The use of multi-staged exhaust air treatment systems is an effective method of substantially reducing the emission of ammonia, dust particles and odorous substances. Wet filter walls are able to absorb large amounts of ammonia when scrubbing fluid containing sulphuric acid is used. In addition, due to their large surface areas and the permanent supply of oxygen and nutrients, wet filter walls ...

Jan. 1, 2011

By IWA Publishing

Air systems at a food storage warehouse

This is a treatment of air systems at a warehouse that stores and redistributes food for 7-Eleven. The customer observed a reduction in electricity bills. However, what was more impressive and valuable for the customer is that the space cooled faster because the air was colder (but not ice cold!). This colder air meant the warehouse could process more food in a day. That resulted in increased ...

Dec. 14, 2012

By Power Knot LLC

Characterization of microbial communities in exhaust air treatment systems of large-scale pig housing facilities

Exhaust air treatment has gained importance as an essential factor in intensive livestock areas due to the rising emissions in the environment. Wet filter walls of multi-stage exhaust air treatment systems precipitate gaseous ammonia and dust particles from exhaust air in washing water. Microbial communities in the biomass developed in the washing water of five large-scale exhaust air treatment ...

Oct. 1, 2010

By IWA Publishing

Dispersion Modeling as a Tool to Establish Odor Policy

Odor control is a critical component of the Orange County Sanitation District’s (the Sanitation District) planning and operations. The Sanitation District’s two wastewater treatment plants (Fountain Valley, CA and Huntington Beach, CA) were isolated when originally constructed in the middle of the 20th century, but are now surrounded by high-density residential areas as well as highly used ...

Oct. 21, 2006

By Water Environment Federation (WEF)

Common Treatment Technologies for Nonhalogenated VOCs in Ground Water, Surface Water and Leachate

It may be necessary to know other subsurface information to provide remediation of VOCs in the ground water. Treatability studies to characterize the biodegradability may be needed for any biodegradation technology. Treatability studies are usually necessary to ensure that the contaminated ground water can be treated effectively at the design flow. A subsurface geologic characterization would be ...

Jan. 1, 1997

By Federal Remediation Technologies Roundtable

The latest information about scrubber installation

IMO 2020 marine fuel regulations result in “very long waiting lists at some shipyards,”, especially in China, for scrubber installation on ship vehicles. The thing is that wet air scrubbers are made to order, and their manufacture generally takes about six months. After the creation, the wet scrubbers are held by shipyards, where queues for installation have now built up. It should ...

Jan. 21, 2020

By Optromix, Inc.

Common Treatment Technologies for Halogenated VOCs in Ground Water, Surface Water and Leachate

It may be necessary to know other subsurface information to provide remediation of VOCs in the ground water. Treatability studies to characterize the biodegradability may be needed for any biodegradation technologies. Treatability studies are usually necessary to ensure that the contaminated ground water can be treated effectively at the design flow. A subsurface geologic characterization would ...

Oct. 1, 1997

By Federal Remediation Technologies Roundtable

Project - Excel Linen Supply - Kansas City, KS

Excel Linen Supply in Kansas City is the largest supplier of linens to the food and beverage industry in Kansas City and surrounding areas. After relocating their plant they were faced with very high waste water surcharges. They already had in place a Kemco DAF (Dissolved Air Flotation System) as their main treatment process. This system kept Excel in compliance with the local waste water ...

Dec. 18, 2020

By Kemco Systems, Co. LLC

Measuring enthalpy to calculate efficiency

Summary This application note describes in detail how you can calculate the gain in efficiency of a direct exchange air conditioning system before and after treatment with the SRA. The physics underlying the method are explained. Introduction Air comprises gasses and water moisture. The gasses are mostly nitrogen (78%) and oxygen (21%). The amount of water moisture in the air is expressed as a ...

Dec. 14, 2012

By Power Knot LLC

Prevent hospital acquired infections during construction projects

The issue of hospital acquired infections is a serious problem. According to several sources, three to four million hospital-acquired infections occur annually, with up to 80,000 fatalities. The costs of these infections are estimated to be between $4 billion and $5 billion per year (Air-Treatment Systems for Controlling Hospital acquired Infections, HPAC Engineering, April 2, 2008).Healthcare ...

Oct. 1, 2008

By Environmental and Engineering Solutions, Inc.

Common Treatment Technologies for Fuels in Ground Water, Surface Water, and Leachate

It may be necessary to know other subsurface information to remediate fuels in ground water. Treatability testing to characterize contaminant biodegradability and nutrient content may be needed for any biodegradation technology. A subsurface geologic characterization would be particularly important to characterize the migration of NAPLs. Recovery tests are usually necessary to design a ...

Jan. 1, 1997

By Federal Remediation Technologies Roundtable

Desalination membrane water treatment system for Lajes US Air Force

GEA designed and provided a Desalination Membrane Water Treatment System for the US Air Force Lajes Field Water Treatment Plant, located in the Azores. The Membrane System capacity is 1.1 MGD (4.2 million m³/day) and consists of twenty (20) 8-inch diameter pressure vessels arranged with 14 pressure vessels in the first pass followed by six pressure vessels in the second pass. There are 120 ...

Apr. 6, 2011

By GEA Engineering PC

Raynesway resource park - Case Study

The Raynesway Resource Park is a 35 hectare site bounded on three sides by the River Derwent. The southern half of a former chemicals plant, soils and groundwaters were impacted by chlorinated solvents, acid tars, hydrocarbons and ammoniacal sludges. Celtic designed a sophisticated groundwater treatment system, integrating air sparging, multi-phase extraction and chemical oxidation to address ...

Oct. 31, 2014

By CELTIC Technologies Ltd

Common Treatment Technologies for Nonhalogenated VOCs

Soil vapor extraction (SVE), thermal desorption, and incineration are the presumptive remedies for Superfund sites with nonhalogenated VOC-contaminated soil. Because a presumptive remedy is a technology that EPA believes, based upon its past experience, generally will be the most appropriate remedy for a specified type of site, the presumptive remedy approach will accelerate site-specific ...

Jan. 1, 1999

By Federal Remediation Technologies Roundtable

The development and application of the hybrid centrifugal - dissolved air flotation system for wastewater treatment

Abstract Solid/liquid separations are integral part of any wastewater treatment system. Particles heavier than water are commonly separated in sedimentation clarifiers. On the other hand, particles with densities lower than that of water are most often separated with flotation systems. This manuscript describes the development of hybrid centrifugal - dissolved air flotation system. The system was ...

Jan. 1, 2008

By Clean Water Technology, Inc.

Case Study for the SRA: Namdhari’s Fresh Foods

Cooler Unit at Grocery Store Namdhari’s Fresh Foods, with its headquarters in Bangalore is a progressive supplier of quality food products in India. Fresh food is kept cool and this cooling is critical to the preservation of quality. With a view to reducing energy, while at the same time having reliable cooling, Namdhari asked Protronix Energy Private Ltd. to monitor and treat an ...

Apr. 20, 2019

By Power Knot LLC

Refinery remediation: fuel recovery and recycling

Introduction The site is a former refinery that occupied approximately 64 acres of land in West Texas. Refinery operations produced all grades of gasoline, tractor fuels, diesel, distillate products, and fuel oils and operated between 1939 and 1954. As a result of past waste management practices, releases to soils and ultimately ground water occurred, resulting in the formation of a ...

Oct. 13, 2010

By GEO Environmental Remediation Company

Used Furnaces & Ovens

Industrial ovens and furnaces are both heated chambers used to process raw materials at higher temperatures than what can be obtained in open-air systems. There is a range of heat treatments possible with both industrial furnaces and ovens, and the main purpose of any heat treatment is to change the mechanical of physical properties of a material. Some examples of materials that benefit from ...

Feb. 13, 2017

By Thermcraft Inc

BCP™ 1015 - In an Air Scrubber System and condenser water loop bio-organic deposit clean-up and control - Case Study

Problem 1 – Fouled Air Scrubber System Image 1: Before BCP™ 1015 treatment: foam & biomass material collected at the screen An air scrubber system located in a high ammonia environment with a low pH (2.8) water and conductivity ofLess than 1000 was exhibiting significant biomass build-up. When screens were pulled for cleaning, the mesh contained a thick layer of bio-mass. (Image ...

Jan. 10, 2019

By AMSA, Inc.

Air sparge system - Case Study

ERC was contracted to install an air sparge system in Central Ohio. Air sparging is an in situ remedial technology that reduces concentrations of volatile constituents in petroleum hydrocarbons adsorbed to soils and dissolved in groundwater. This involves the injection of contaminant-free air into the subsurface saturated zone, enabling a phase transfer of hydrocarbons from a dissolved state to a ...

Apr. 29, 2020

By Environmental Remediation Contractor