Профиль участника
Д-р. Bill Butterworth
Организация:
Land Research Ltd
Страна:
Соединенное Королевство
Область (области) знаний:
I am working on:
Recycling cuttings and spent fluids from HDD (Horizontal Directional Drilling, deep drilling . shale gas exploration, geothermal drilling.
Д-р. Bill Butterworth
Water scarcity and Closed Loop Recycling of Wastes
High organic matter soils are reservoirs for water and that reservoir can be made bigger thus making irrigation water go 5 or even 10 times further. As the world gets more populated, it produces more agricultural and urban wastes. As it gets richer, it produces more urban wastes. For the human race to survive, we have to recycle these wastes. Most, if not all crop wastes, and many (most in some areas) urban wastes can be recycled using aerobic digestion, i.e. “composting” and TAD (Thermophilic Aerobic Digestion – pumping air in to raise the temperature). It is easy to accept that crop wastes from farming, or green wastes from urban gardens can be composted, but so can many industrial wastes.
Take hard plastics out of consideration, they are difficult but many plastics can be successfully recycled. For example, urea-formaldehyde is the “glue” used to make boards for furniture manufacture and discarded chip-board and MDF (Medium Density Fibreboard) and, when shredded, are a very useful source of Nitrogen fertiliser and are helpful in composting other materials. Another example is a “base” plastic (used to manufacture a wide range of glues and consumer product plastics) is PVA – Polyvinyl alcohol. This is “rocket fuel” for the micro-organisms in a compost heap but it is not easy to handle. It is liquid at temperatures above 60 or 70 degrees C but becomes progressively sticky as it cools.
Much easier to handle are materials such as crop residues, green wastes from urban gardens or city arboricultural management, cardboard and tissues and some industrial wastes. A good source of Nitrogen fertiliser is sewage and thorough composting above 60 degrees C will control pathogens. (Turn the heap every few days until it gets to 60 degrees, turn again and get up to 60. Three or four times up to 60 will dramatically reduce pathogen transfer risk.)
I shall soon be introducing a regular series on a page at https://landresearchonline.com/
Д-р. Bill Butterworth
Composts made from urban wastes will hold between 5 and ten times their own weight of water. Taking urban wastes can also earn cash. So, take the wastes, compost them and create sub-surface layers ass “top soil reservoirs”. See details in How to make on-farm composting work and Reversing global warming for profit both by Bill Butterworth and published by MX Publishing, London.
Bill Butterworth
The Director
Land Research Ltd
[email protected]
Blog at www.landresearchonline.com
Skype bill.butterworth15
Mobile and voice mail 079 500 37 153