Recycling of Cars Made Green & Cleaner with Verderflex Peristaltic Pumps

07.05.2015

At the end of its’ life, a car yields on average, 140 kilos of shredder waste: 26 kg of metals, 69 kg of plastics, 11 kg of minerals and 24 kg of fibres. In Tiel, Netherlands, a Post Shredder Treatment plant (PST) was built in 2011, for the recycling of cars.

Recycling of Cars Made Green & Cleaner with Verderflex Peristaltic Pumps

Verderflex

The PST plant is one of the two plants in Europe that are able to recycle to approximately 95% of the waste materials. Aiming for 100% recycling, continuous research and development is conducted in the company. In 2015 their goal is to recycle 95 percent of end-of-life vehicles. The last valuable material recovered is from shredder waste in the plant, which is crucial in order to fully achieve the legal objective. Today ARN has already reached this goal by separating about 40 percent of all shredder waste from cars. 56 percent of the remaining shredder waste is incinerated with energy recovery: just 4 percent at the most ends up in the landfill.

The separation process is accomplished by a large number of different techniques. 179 different machines are used to screen the waste, cut it in the hammer crusher and centrifuge the waste particles to enable separation of the shredder waste. Sink-or-swim tanks are also used to separate materials with different specific gravity from one another. Huge mega magnets are used to separate the larger metallic parts. Most techniques consist of innovative technical airflows in cyclones of different nature (eg, swirling, air blowing under or above or sideways), feeding or just by draining fluids. Also settling and circulation of fluid streams (for re-use of the process materials such as calcium carbonate) are recurring techniques.

Separation through fluid streams Calcium carbonate

In the last stage of separation, several materials are separated in fluid stream baths, using a difference in specific gravity. Calcium carbonate,

powdered limestone, is circulated in a settling tank. Since this material is heavy, it will settle after 30 minutes. In order to keep the calcium carbonate from sticking to the bottom, a Verderflex Dura 45 hose pump is used to keep the fluid stream moving. Since its installation in 2013, the Dura 45 has been pumping around the clock, without requiring a single hose change.

Separation of copper parts in a settling tank

Copper parts are circulated by a stirrer in a settling tank. The copper parts are pumped into another tank by a specific movement of the stirrer. Due to the high gravity of

copper, the copper parts settle at the bottom of the tank and every 2 weeks the tank has to be cleaned out manually. For this application, ANR purchased 3 Verderflex Dura

45 pumps, and used them as circulation pumps. This prevents copper parts from settling at the bottom of the tank and are pumped into another section of the separation process.

Separation larger plastic particles (>130 mm)

Plastic waste is separated by circulating water. The plastic floats and is pumped out by a Verderhus screw channel pump. After many trial pumpings, the Verderhus, with its half open screw impeller, pumps plastic into the plastic containers. This works extremely well without clogging the pump.

Extra lubrication for the plastics

Verderflex Rapide tube pump doses a small amount of ecodish every hour to the circulating water. Ecodish is an organic lubricant, which lubricates the plastic even more to make it float away faster and smoother. Throughout this plant Verder Ltd is responsible for supplying 7 pumps, helping the World become a greener place!

Customer prospective

Since the opening of the plant, ARN have developed a number of manufactured products from the recycled materials. As a result, BlueRoots was developed; this product is suitable for manufacture of street name plates and street furniture. A new promising product is sheet material, suitable for sheets being used in construction.

Emile Bregita (Head of Technical Department, ARN): “We are very satisfied with all the Verder pumps used in our plant. Without exception, the pumps run continuously without problem. We almost forget that they are there! We are so satisfied with the pumps that we have recommended Verder to colleague companies who experience problems with their waste process flows!”

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