Landustrie: New sanitation

We recognize that innovation in wastewater technology is of utmost importance. Main issues are how to reduce energy consumption and contribute to a circular economy. This has led to new innovative sanitation solutions such as decentralized wastewater treatment, resulting in the regeneration of valuable material, and residues that are reused for energy production.

In close cooperation with our sister company DeSaH B.V. we are able to market these new sanitation technologies.


Circular Buiksloterham, Amsterdam

In the Buiksloterham district of Amsterdam, located on the northern bank of the river IJ, 550 houses will be connected to a floating wastewater treatment plant. The “Circular Buiksloterham” project will be completed in mid-2019.
The houses will be equipped with vacuum toilets which will reduce drinking water consumption. These toilets will only use 1 litre of water per flush. The black water from the toilets is then collected via a vacuum sewer system and transported to the floating black water treatment plant. Here, harmful substances are removed from the medium and biogas is produced by means of anaerobic digestion. By converting biogas into electricity, the installation has become completely energy-neutral. Furthermore, nutrients are recovered from the black water, such as phosphate, which can be reused as a fertilizer.

Contractor : Waternet Amsterdam

Circular Buiksloterham
Floating wastewater treatment plant

Government building The Hague

Rijnstraat 8, The Hague

For the Dutch government building "Nieuwe Rijkskantoor" located at Rijnstraat 8, The Hague, Landustrie realized a decentralised water treatment plant. This new accommodation for approx. 6000 civil servants from a number of government ministries is equipped to process the wastewater and recover energy and nutrients. 
The existing waste streams from the office are treated in the building; the black water from vacuum toilets is collected together with the organic waste in a concentrated manner and processed in a digester tank. The digestion process produces renewable energy in the form of biogas that is used to heat the building. The yellow water from the urinals is processed in the struvite reactor. Phosphate is recovered from the collected urine in the form of struvite. This can be applied directly as fertilizer. 
This new installation will pay for itself through savings on water use, water treatment levy and costs of waste treatment and energy. The Ministry building is the largest office where such a sustainable sanitation concept has been applied.