British queen ‘goes green’ with Dutch Landy hydro power screw

September 23rd, 2011 by nwp

The 40-tonne Archimedes’ screws were put in place early September by crane at Romney Weir on the River Thames, just a few miles from Queen Elizabeth’s favourite royal residence Windsor Castle.

Water sets screw in motion
The turbines are made by the Dutch watertechnology company Landustrie. The LANDY hydro power screws are installed in a small overflow dam of the Thames where they will generate energy. The water that flows downstream sets the screw in motion and so generates ‘green’ electricity for local use. It is estimated the turbines will reduce carbon dioxide emissions by 790,000 kilos per year.

Leasing the dam
The Archimedes Screw turbines, supplied to the Windsor Castle by Southeast Power Engineering Ltd, will be ready to operate from November. The company is working in partnership with the Environment Agency, which is leasing the weir.

Large potential for green energy
The Environment Agency sees the many small dams in the UK as untapped source of energy and is keen to ensure hydropower fulfils its potential as a small but useful renewable energy source, whilst protecting the environment.

In Berkshire, the agency teamed up with Windsor and Maidenhead council to investigate schemes at Marlow, Boveney and Boulters weirs, while work is already under way to generate electricity at Osney and Goring weirs in Oxfordshire.

The small dams were originally built to control water levels for navigation and flood risk purposes.

More information:
Landustrie
Sneek, the Netherlands
+31 515 486 888
www.landustrie.nl


Posted in News.

Landustries places second generation MobiSan dry sanitation unit in Cape Town

July 29th, 2011 by nwp

The Dutch firm Landustrie has placed a second generation MobiSan dry sanitation unit in Cape Town, South Africa. The unit is ready for use at once, without water or power supply. The first version was placed in 2008 and as the results and experiences with this new sanitation method, Landustrie developed this new improved version.

The new one includes smaller toilets that are easier to transport to install.

More units linked together
The MobiSan unit is continuously staffed with local (community) caretakers (2 per unit), previously trained and responsible for the cleansing, operation and maintenance of the system. Depending on the size of the township, several units can be linked together. MobiSan units are produced locally in order to keep costs low and to stimulate local employment.

Urine collected separately
MobiSan is a dry sanitation and urine diversion stand alone, portable and self-contained system, which does not affect groundwater. It is equipped with 13 toilets and 12 urinals with the urine being channelled away into a container tank.

Avoid contact with faeces
The processing of the faeces is based on a double-vault system to avoid contact. The faecal matter end up in the first collection chamber and is mixed manually through a mechanical device. When the vault is full its content is transferred to the second chamber with the help of the mixing device while the first one remains in use. In the second chamber the faecal matter is stored for further hygienisation and improvement of the end product quality.

Good compost for vegetable gardens
The objective is to obtain a dry mixture that is pathogen free and therefore suitable for use in certain types of vegetable gardens.

More information on MobiSan: Landustrie, Sneek +31 515 486 888

More information: South Africa-Netherlands Water network, Water Institute of Southern Africa (WISA) +27 11 805 3537


Posted in News.