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
When corals eat plastics
24.05.2018 | Justus-Liebig-Universität Gießen
Dispersal of Fish Eggs by Water Birds – Just a Myth?
19.02.2018 | Universität Basel
The more electronics steer, accelerate and brake cars, the more important it is to protect them against cyber-attacks. That is why 15 partners from industry and academia will work together over the next three years on new approaches to IT security in self-driving cars. The joint project goes by the name Security For Connected, Autonomous Cars (SecForCARs) and has funding of €7.2 million from the German Federal Ministry of Education and Research. Infineon is leading the project.
Vehicles already offer diverse communication interfaces and more and more automated functions, such as distance and lane-keeping assist systems. At the same...
A research team led by physicists at the Technical University of Munich (TUM) has developed molecular nanoswitches that can be toggled between two structurally different states using an applied voltage. They can serve as the basis for a pioneering class of devices that could replace silicon-based components with organic molecules.
The development of new electronic technologies drives the incessant reduction of functional component sizes. In the context of an international collaborative...
At the LASYS 2018, from June 5th to 7th, the Laser Zentrum Hannover e.V. (LZH) will be showcasing processes for the laser material processing of tomorrow in hall 4 at stand 4E75. With blown bomb shells the LZH will present first results of a research project on civil security.
At this year's LASYS, the LZH will exhibit light-based processes such as cutting, welding, ablation and structuring as well as additive manufacturing for...
There are videos on the internet that can make one marvel at technology. For example, a smartphone is casually bent around the arm or a thin-film display is rolled in all directions and with almost every diameter. From the user's point of view, this looks fantastic. From a professional point of view, however, the question arises: Is that already possible?
At Display Week 2018, scientists from the Fraunhofer Institute for Applied Polymer Research IAP will be demonstrating today’s technological possibilities and...
So-called quantum many-body scars allow quantum systems to stay out of equilibrium much longer, explaining experiment | Study published in Nature Physics
Recently, researchers from Harvard and MIT succeeded in trapping a record 53 atoms and individually controlling their quantum state, realizing what is called a...
25.05.2018 | Event News
02.05.2018 | Event News
13.04.2018 | Event News
25.05.2018 | Event News
25.05.2018 | Machine Engineering
25.05.2018 | Life Sciences