feed water Articles

The UN declared 2005-2015 as the International Decade for Action ‘Water for Life’. Yet each day thousands of people still die as a result of contaminated water. This does not even take into account the millions of organisms that perish every year thank to polluted water sources. Water pollution is a huge issue that is made more so by the fact that unfortunately, water is ...

Sep. 13, 2017

By Aquaread Limited

Two different NF membranes were operated to remove natural organic matter (NOM) originating from Dongbok Lake in Korea. Coagulation/sedimentation and sand filtration treated waters as membrane feed waters were used. Tested NF membranes such as RF (Saehan, Korea) and NF90 (Filmtec, USA) membranes were exhibited slightly different pore size distribution, hydrophobicity and surface charge in terms ...

Nov. 10, 2007

By Toray Chemical Korea

Feeding a thirsty world: Challenges and opportunities for a water and food secure world, provides input into the discussions on water and food security to take place at the 2012 World Water Week in Stockholm. Authored by a dozen experts from SIWI, the Food and Agriculture ...

Aug. 24, 2012

By Stockholm International Water Institute

When it comes to choosing technology for boiler feed water treatment, knowing the feed water source quality in relation to the water quality required for your specific boiler is essential, as inadequate water treatment can lead to the scaling, corrosion, and fouling of the boiler and downstream equipment. We’ve mentioned this before in some of our previous boiler feed water treatment ...

Sep. 19, 2016

By SAMCO Technologies, Inc.

For industrial companies using a boiler for its facility, some type of boiler feed water treatment system is usually necessary to ensure an efficient process and quality steam generation. The most appropriate boiler feed water treatment system will help the facility avoid costly plant downtime, expensive maintenance fees, and boiler failure as a result of scaling, ...

Sep. 26, 2016

By SAMCO Technologies, Inc.

When treating boiler feed water (the combination of boiler makeup and condensate return water), several issues can arise that cause boiler scaling, corrosion, fouling, and system failure. Below, we break down the most common boiler feed water issues and how to avoid them to help ensure system efficiency and operational safety. While treating boiler feed water is extremely ...

Sep. 23, 2016

By SAMCO Technologies, Inc.

Challenge A large power generation client required a treatment solution to meet the parameters required for their boiler feed operations. The inlet feed water contained several contaminants including hardness minerals such as calcium/magnesium, dissolved salts, trace hydrocarbon and certain heavy metals including ferric iron. Solution ...

Apr. 20, 2015

By Genesis Water Technologies, Inc.

Proper treatment of boiler feed water is an important part of operating and maintaining a boiler system. As steam is produced, dissolved solids become concentrated and form deposits inside the boiler. This leads to poor heat transfer ...

Aug. 27, 2007

In Feeding Ourselves Thirsty, Ceres takes a closer look at how the food sector is managing water risk. The report evaluates publicly available information on the water use, stewardship and policies of 37 major food sector companies in four industries: packaged food, beverage, meat and agricultural products. The report examines how water risks affect the profitability and competitive positioning ...

May 7, 2015

By Ceres

This article describes an innovative technology based on film forming amines for the treatment of boiler feed water. A good treatment programme for boiler feed water is crucial to the smooth operation of steam generators. Faulty treatment can cause damage to the plant, with attendant high costs. Download the article to find out more. A good treatment programme for boiler ...

Sep. 14, 2015

By Kurita

Aminoglycoside antibiotics are among those commonly used in animal feeds to manage intestinal microorganisms. The beneficial effects include improved growth and generally healthier animal populations. Use of antibiotics creates a demand for analytical procedures to verify concentrations in pre-mixes and feeds and in some instances for residue analysis in animal products. This note describes a ...

Jun. 10, 2010

By Pickering Laboratories, Inc.

Dart Controls offers DC drives with the essential features required for water/wastewater and chemical feed applications. These drives integrate easily with PLC / SCADA systems providing 4-20mA signals for pump set speed.  Advanced Digital DC drives offer verified actual speed feedback, diagnostic and process alarms and much more…. The 253G-200E-7 is our most popular DC drive. This ...

Mar. 29, 2012

By Dart Controls, Inc.

The trouble-free operation of a Reverse Osmosis (RO) plant relies on the quality of the treated feed water, which highlights the need for optimisation of the pre-treatment steps. The quality of raw seawater varies with time in terms of suspended and colloidal load, along with the dissolved salt content. In a conventional pre-treatment scheme, consisting of clarification and particulate and micron ...

Feb. 21, 2007

By Inderscience Publishers

The discipline of Ecological Engineering is an emerging field mimicking ecological processes, within natural or constructed imitations of natural systems to achieve engineering goals. Applying ecological engineering to a future, carbon intensive environment considers the transport of nutrients and energy within our local micro-systems to integrate and maximise eco-efficiencies. Zero emission ...

Jul. 29, 2008

By Fishace Ecological Engineering

The sludge feed systems for anaerobic digestion facilities at wastewater plants in North America have been and continue to be modified and upgraded for a variety of reasons. These reasons include operational problems and issues, evolution from prior primary-sludge-only digestion facilities, performance-based reasons, regulatory-based reasons, and include the desire to improve the digestion ...

Oct. 21, 2006

By Water Environment Federation (WEF)

Coagulant dosing control in drinking and wastewater treatment plants (WWTPs) is often limited to flow proportional concepts. The advanced multi-parameter-based dosing control systems have significantly reduced coagulant consumption and improved outlet qualities. Due to the long retention time in separation stages, these models are mostly based on feed-forward (FF) models. This paper ...

May 17, 2016

By IWA Publishing

The in situ feeding bioassay in Gammarus fossarum is recognised as a reliable tool for monitoring the toxicity of freshwater contamination. However, whether recorded feeding inhibitions can potentially provoke population‐level adverse outcomes remains an open question. Here we present an experimental study in G. fossarum, which contributes to the quantitative description of the links between ...

Jan. 12, 2015

By John Wiley & Sons, Ltd.

Abstract Membrane Contactors have been used to remove dissolved oxygen in boiler feed water systems for years. This report reviews various system designs and discusses how Membrane Contactors can ...

Jan. 1, 2005

The Facility Sidi Krir Unit 3 & 4 Power Plant, developed by InterGen and Edison SpA, is located about 30 kilometers west of Alexandria, Egypt. It is a natural gas fired power plant and at 685 MW generating capacity, is the largest IPP thermal power plant in the Middle East. The plant consists of two power blocks, which share a common membrane based Seawater Desalination system ...

Sep. 14, 2010

By Aquatech International Corporation

ShenLan Environment Inc. located in Shanghai China uses Liqui-Cel® Membrane Contactors in their boilerfeed water treatment systems. These systems realize lower operating costs with the added benefit of reducing the chemicals added to the boiler feed water. BackgroundProper treatment of boiler feed water is an important component of a boiler system. As steam is produced, dissolved solids become ...

Nov. 6, 2009