Lewa Sells Norwegian Subsidiary to Ellingsen Systems AS

For applications in process technology with medium hydraulic outputs, the question often arises as to whether the pulsation of an oscillating pump with only one plunger is too high. It is not uncommon for a less expensive single-head pump to be used in this transitional area.

Wastewater from ethylene production in chemical and petrochemical industries as well as in petroleum refineries poses a particular challenge in terms of water treatment. As it contains hazardous pollutants such as sulfides and mercaptans, that do not respond to traditional treatment methods, chemical companies and refineries resort to Wet Air Oxidation (WAO).

In 2021, around 11 billion tons of cargo were transported by sea worldwide. This accounts for almost 90 percent of global trade and means that the shipping industry, which has mainly been powered by heavy fuel oil until now, is responsible for around three percent of global CO2 emissions.

A lower density, better mechanical and insulating properties and significantly reduced raw material consumption. Given these advantages, it is no wonder that foamed plastics have taken the market by storm in recent years. They are mainly used as packaging components and for shock absorption, thermal insulation and soundproofing.

Climate change can only be successfully combated if a comprehensive circular economy can be established. The technologies required for this are available – a large number of mechanical engineering companies have been demonstrating this at the world’s leading trade fair IFAT Munich 2024 last week. However, a circular economy also requires the right political guidelines – and there is still a huge gap here.

Ammonia is currently at focus as clean alternative to heavy fuel oil that has predominantly been used. The technology employed in order to use liquid ammonia as a fuel must be hermetically tight and guarantee maximum operational safety as the gas is toxic and harmful to the environment. LEWA’s high-pressure diaphragm pumps meet these requirements. Their standard safety mechanisms make them suitable for hazardous, toxic and environmentally harmful fluids such as NH3, even under extreme operating conditions.