Water Evaporator Articles on Environmental XPRT

Maintenance To-Do: Coil Cleaning

A coil-cleaning program should be an integral part of maintaining some kinds of process cooling equipment. Most people think of coil cleaning as a building or facility prepares to turn on the air-conditioners for another season. Admittedly, spring is a perfect time to put such cleaning and maintenance at the top of the to-do list. Condenser and evaporator coils are an integral part of HVAC ...

Jun. 28, 2017

By Evapco Inc.

The solutions of industrial hot water boiler water evaporation

When the water evaporation of industrial hot water boiler occurs,we should actively looks for the reasons and the corresponding solutions to extend its thermal efficiency. In the last article,the reasons of industrial hot water boiler water vaporization have been analyzed,after consulting the engineers of Zhengzhou Boiler Co., Ltd,this text will introduce the ...

Sep. 3, 2014

By Zhengzhou Boiler Group Co., Ltd

Evaporation and retention structures

On natural, unsealed areas evaporation is the main part of the water balance among surface runoff and percolation. In Germany, an average of 60 % of precipitation evaporates on unsealed areas. If the intend is a natural hydrological balance, great importance is attached to evaporation. Besides, measures for rainwater harvesting, that have a positive impact on evaporation can contribute positively ...

May 30, 2012

By IWA Publishing

Evaporation and recovery of organic solvents

Customer: H.E.J. Research Institute of Chemistry, Pakistan H.E.J. Research Institute of Chemistry is the largest research institute of Pakistan with state of the art facilities. The areas of research covered in the programs of the institute broadly relate to isolation, structural, synthetic and pharmacological studies on novel natural products as well as various aspects of protein ...

Jul. 6, 2013

By BÜCHI Labortechnik AG

Urban evaporation rates for water-permeable pavements

In urban areas the natural water balance is disturbed. Infiltration and evaporation are reduced, resulting in a high surface runoff and a typical city climate, which can lead to floods and damages. Water-permeable pavements have a high infiltration rate that reduces surface runoff by increasing the groundwater recharge. The high water retention capacity of the street body of up to 51 l/m2 and its ...

Sep. 1, 2010

By IWA Publishing

Comparing Evaporative technologies for the Recycling of produced Water

Both multi-stage and MVR evaporators are capable of producing distilled quality water from produced water. Distilled water quality ranges from 100 to 500 ppm TDS depending upon the initial TDS of the produced water and the level of concentration of bottoms (waste) obtained. Typical systems are capable of attaining final concentrations ranging from 270,000 ppm to 350,000 ppm TDS. The ...

Aug. 7, 2013

Water and vapor movement with condensation and evaporation in a sandy column

The diffusion of warm, humid air into an initially cold, dry, sandy column was analyzed to study the movement of water vapor and liquid water under nonisothermal and low water content conditions. The analysis was performed using the HYDRUS-1D code. While the water retention curve of sand was measured experimentally, the unsaturated hydraulic conductivity function was inversely estimated from the ...

Mar. 11, 2009

By Soil Science Society of America (SSSA)

Pipeline Compressor Station Evaporates Storm Water

Contaminated wastewater is one of the most problematic and potentially expensive issues for industry today. Hauling wastewater can be expensive and may expose the company to substantial liability. On-site processing can involve extensive fees and time-consuming paperwork. Fortunately, there is a solution. Evaporation is a practical, environmentally sound, and economical ...

Jan. 1, 2007

By Samsco Corporation

Spray flash evaporator for low-temperature saline water desalination application

A new spray-type flash evaporator is suggested for the application of saline water desalination. The flash evaporator is 1000 mm in height and 1200 mm in diameter, with a water injection arrangement inside. The evaporator design is based on experiments conducted at vacuum pressures between 10 and 18 mm of Hg, and at saline feed water temperatures between 26?C and 32?C. The saline water is ...

Nov. 20, 2007

By Inderscience Publishers

Biodegradation of artificial monolayers applied to water storages to reduce evaporative loss

Repeat applications of an artificial monolayer to the interfacial boundary layer of large agricultural water storages during periods of high evaporative demand remains the most commercially feasible water conservation strategy. However, the interfacial boundary layer (or microlayer) is ecologically distinct from subsurface water, and repeat monolayer applications may adversely affect ...

Jul. 7, 2015

By IWA Publishing

Effects on evaporation rates from different water-permeable pavement designs

The urban water balance can be attenuated to the natural by water-permeable pavements (WPPs). Furthermore, WPPs have a 16% higher evaporation rate than impermeable pavements, which can lead to a better urban climate. Evaporation rates from pavements are influenced by the pavement surface and by the deeper layers. By a compared evaporation measurement between different WPP designs, the grain size ...

Jan. 1, 2011

By IWA Publishing

Advanced Water Treatment and Evaporation Systems Produce High Efficiency

AQUATECH IS CHANGING THE GAME in the water recycling industry through its SmartMOD Modular Evaporator System and HEVAP High Efficiency Evaporation Process for SAGD Water Treatment. For over 30 years, the company has focused exclusively on desalination, water reuse, and zero liquid discharge with water purification technologies suited for global industrial, upstream and ...

Jun. 11, 2014

By Aquatech International Corporation

Case study - oil removal prior to evaporation

Customer: Locomotive Service Company located in Texas - repair and maintenance of railroad locomotives and cars. The Problem: Customer installed a water evaporator system to reduce waste water volume and disposal costs. Evaporator system included a small oil/water settling tank, but no oil skimming system. Customer needed an automatic ...

May 23, 2012

By SkimTech Inc.

Estimation of pan evaporation using soft computing tools

Estimation of evaporation plays a key role in managing water resources projects. Traditionally, evaporation is determined using theoretical and empirical techniques as well as by pan observations. Practically, it is difficult to install evaporation pans at every location and empirical approach like Penman's equation is data intensive. This necessitates the use of an alternative approach, which ...

Mar. 1, 2013

By Inderscience Publishers

Energy cost for desalination evaporation versus reverse osmosis

The selection of the appropriate desalination technology between evaporation and reverse osmosis is grounded on several factors, including investment cost, maintenance cost, degree of availability, heaviness of the duty, and the required purity of the desalinated water. The main factor is often the running cost of the plant, and specifically the cost of the consumed energy. This paper intends to ...

May 19, 2011

By Inderscience Publishers

Evaporator saves electroplater millions in disposal costs

The Facility The AK Steel Middletown Works plates zinc nickel alloy onto steel strip. They started up their first plating line in 1991 and expanded from twentyone to thirty-two cells in 1995. The Problem In order to maximize line speed and thus the production, the strip needed to be rinsed immediately after plating. The rinse water diluted electrolyte ...

Sep. 14, 2010

By Aquatech International Corporation

Evaporator reduces wastewater volume for dakota gasification

Evaporator integral to stringent zero liquid discharge (zld) waste requirements American Natural Gas (ANG) developed a coal gasification project in Beulah, North Dakota in the early 1980’s to produce pipeline gas and various other products. Basin Electric, the local utility, acquired the plant in 1988 and renamed it Dakota Gasification. The Problem ...

Sep. 14, 2010

By Aquatech International Corporation

ESA Entsorgungsservice relies on advanced evaporator technology

ESA Entsorgungsservice GmbH & Co. KG was founded in 1998 and specialises in the treatment of oily waste. Five years ago, owner Frank Ackermann moved the company to Nattheim, Germany, and invested in a state-of-the-art environmentally-friendly treatment system. He speaks about his experience in this interview. Mr Ackermann, what were the reasons behind your move? ...

Jun. 1, 2016

By H2O GmbH

Gettysburg hospital addresses ailing evaporative coolers

WellSpan Gettysburg Hospital was looking to modernize mechanical systems to ensure reliability of critical patient-care functions. Constructed in 1921, WellSpan Gettysburg Hospital in Gettysburg, Pa., has undergone a number of changes over the years. According to Joe Lehigh of the facility’s engineering team, the most recent were made chiefly to improve hospital operations. “The key ...

Jun. 7, 2017

By Evapco Inc.

Extension of an existing model for soil water evaporation and redistribution under high water content conditions

Most crop, hydrology, and water quality models require the simulation of evaporation from the soil surface. A model developed by J.T. Ritchie in 1972 provides useful algorithms for estimating soil evaporation, but it does not calculate the soil water redistribution resulting from evaporation. A physically-based model using diffusion theory, described previously by Suleiman and Ritchie in 2003, ...

Mar. 11, 2009

By Soil Science Society of America (SSSA)

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