Scientists at the University of Plymouth have been developing methods to `close the loop` on waste and pollution, by finding waste products that can be used to improve soil / plant-growth conditions. At the Society for Experimental Biology conference in Swansea Dr Stuart Lane presented ways in which garden and industrial waste could be recycled to benefit the environment.
In collaboration with Ecological Sciences Limited, Dr Lane`s group investigated a horticultural growth substitute for peat, derived from garden waste products. Because the mining of peat bogs is both unsustainable and ecologically destructive, given that peat bogs take hundreds of years to form and provide a specialised habitat, horticulturalists are seeking to replace traditional methods based on peat with more environmentally friendly alternatives. The EcoSci research project headed by Stephen Bullock experimented with green waste derived compost (GWC) made up of garden waste (such as hedge trimmings and lawn clippings) collected from civic refuse sites. The waste was carefully composted and mixed with coir - coconut husks, another industrial waste product - and composted bark. The GWC was tested against a well-known peat-based commercial product for ten plant species and was found to out-perform the peat product in almost all the parameters tested. GWC is organically accredited and the company is now looking to develop an organic multi-purpose compost.
Dr Lane`s group also investigated a waste product of horticulture. Hydroponics - growing plants without soil - frequently uses rockwall, a loft insulation material that cannot be recycled. Dr Lane set up a hydroponics study where the rockwall was replaced with zeolite, a cystalline solid that acts like a molecular sieve and is used in industrial catalysts and in products such as washing powders. Zeolite effectively retains and exchanges ions, so can be used to `channel` nutrients to plant roots and retain toxic minerals. Dr Lane found that the zeolite provided a good growth medium, regulating minerals and aerating the roots properly, and could be re-used for a number of growth cycles. The group also investigated the safest way of disposing of the zeolite once its ion exchange capacity was spent, by mixing it into soil at concentrations where it would not interfere with the flow of beneficial minerals to plants or release high levels of harmful metals.
Jenny Gimpel | alphagalileo
Removing fossil fuel subsidies will not reduce CO2 emissions as much as hoped
08.02.2018 | International Institute for Applied Systems Analysis (IIASA)
The disappearance of common species
01.02.2018 | Technical University of Munich (TUM)
Breakthrough provides a new concept of the design of molecular motors, sensors and electricity generators at nanoscale
Researchers from the Institute of Organic Chemistry and Biochemistry of the CAS (IOCB Prague), Institute of Physics of the CAS (IP CAS) and Palacký University...
For photographers and scientists, lenses are lifesavers. They reflect and refract light, making possible the imaging systems that drive discovery through the microscope and preserve history through cameras.
But today's glass-based lenses are bulky and resist miniaturization. Next-generation technologies, such as ultrathin cameras or tiny microscopes, require...
Scientists from the University of Zurich have succeeded for the first time in tracking individual stem cells and their neuronal progeny over months within the intact adult brain. This study sheds light on how new neurons are produced throughout life.
The generation of new nerve cells was once thought to taper off at the end of embryonic development. However, recent research has shown that the adult brain...
Theoretical physicists propose to use negative interference to control heat flow in quantum devices. Study published in Physical Review Letters
Quantum computer parts are sensitive and need to be cooled to very low temperatures. Their tiny size makes them particularly susceptible to a temperature...
Let’s say the armrest is broken in your vintage car. As things stand, you would need a lot of luck and persistence to find the right spare part. But in the world of Industrie 4.0 and production with batch sizes of one, you can simply scan the armrest and print it out. This is made possible by the first ever 3D scanner capable of working autonomously and in real time. The autonomous scanning system will be on display at the Hannover Messe Preview on February 6 and at the Hannover Messe proper from April 23 to 27, 2018 (Hall 6, Booth A30).
Part of the charm of vintage cars is that they stopped making them long ago, so it is special when you do see one out on the roads. If something breaks or...
15.02.2018 | Event News
13.02.2018 | Event News
12.02.2018 | Event News
16.02.2018 | Information Technology
16.02.2018 | Health and Medicine
16.02.2018 | Physics and Astronomy