Sludge management system for small onsite water treatment plants, including household water treatment plants
Title of the offer
Sludge management system for small onsite water treatment plants, including household water treatment plants
Offer description
The subject matter of this Invitation is the technology and (pre-production) prototype of a sludge composting and sanitization device for small treatment plants of waste water, green (garden) waste and food waste, including at household level. The prototype includes a sludge conveyor and a composter equipped with aeration, humidity and temperature control, general control, piping and other systems.
The technology includes a control system for the co-composting process of waste water sludge, green waste and food waste. The process should be controlled so that the final product meets the applicable requirements for fertilizers and, due to automation, is both user and environmentally friendly. The entire system is made of reliable, inexpensive hydraulic and mechanical components which make it a compact device enabling users themselves (either individuals or collectivities) to produce valuable “bio-fertilizers.”
Waste water sludge, a typical by-product of each water treatment plant, is an important component of such “bio-fertilizers” and includes nutrients usable in horticulture and other fruit-growing activities. It is preferable to process such waste onsite with cheap and simple composting techniques to make good use of it.
In accordance with European and national guidelines, instead of being landfilled, such waste should be largely used for agricultural and environmental purposes. Also, due to environmental and economic concerns (ability to use as a “bio-fertilizer”; high transport costs), such waste should be managed onsite. This is of particular importance to users of small water treatment plants usually located away from mechanical and biological waste processing/stabilization facilities.
