All Blog Posts (106)

Many water companies are looking to invest a lot of money in renovating the pipe network in order to reduce non-revenue, but is this really the best way of doing things? When leaking pipes are exchanged and nothing is done to the pump control, then the pressure in the rest of the network simply increases. Looking at the below graph, it is quite clear, that as pressure increases, so does the water losses. …

By: Duddy Heviandi Oyib 

Recent research projects have underlined the potential of ultrasound as a chemical free treatment in water-related applications. This article reviews the use of ultrasound produced by the LG Sonic technology, with a focus on wastewater, irrigation and …

I often hear the comment, that constant flow pumping obviously does not require any variable speed drives. While this to some extend is true, there are many constant flow applications, which would still benefit from variable speed drives.

First of all many constant flow applications are trimmed using balancing valves. In many installations I have seen a trim to 80% of the pumps nominal flow. The simplest calculation on this is to use the cube law and 80%^3 = 51.2% energy usage, which…

The Water Environment Federation’s (WEF) Board of Trustees approved a position statement on the recovery of resources from wastewater during WEFTEC — taking place this week in Los Angeles, Calif. The statement, “Renewable Energy Generation From Wastewater”, calls for wastewater-generated energy to be widely recognized as a renewable resource and for a greater drive for innovation in the water sector.

On a related note, I talked with someone on the show floor at WEFTEC about treating…

A chemical-free water treatment systemconsisting of fibre filters, ultrasound, and UV for fish farming was operatedin a fishpond to study its effect on the control of algae compared with a non-treated fishpond.

The results showed that ultrasonication causedefficient sedimentation of planktonic algae. The number of determined algal species was lower in the treated pond. The proportion of…

Working to upgrade US water and wastewater infrastructure could help create nearly 1.9 million jobs and add $265 billion to the economy. That’s the message of a new report released by Green For All, in partnership with American Rivers, the Economic Policy Institute and the Pacific Institute. To read the full report, visit http://www.greenforall.org/resources/water-works

EPA has released the final health assessment for trichloroethylene (TCE), calling it carcinogenic and a threat to human health.

TCE is one of the most common man-made chemicals found in the environment. It is a volatile chemical and a widely used chlorinated solvent. Frequently found at Superfund sites across the country, TCE’s movement from contaminated ground water and soil, into the indoor air of overlying buildings, is of serious…

History:

            I have over a decade of experience in the pump industry. In that time I had the opportunity to work on the state of the art pitot tube pump. There are some drawbacks I encountered when working on this pump that left me thinking, “maybe  there is a different way”. The most immediate difficulties I observed:

• The pitot tube is a complex piece. This is the heart of…

New innovations at LG Sound!

LG Sound is the manufacturer of the LG Sonic devices, which can be used to control algae with ultrasound. This solution is environmentally friendly, easy and safe, even for your fish, water plants and even insects.

LG Sound has been working on the ultrasonic technology for over 10 years, to bring it to customers in various markets. By spending a lot of time, money and effort in research and innovations, LG Sound has been capable to…