The water needed to run the center is obtained by collecting and draining off the water from the surrounding area, achieved by laying special pipes to capture the rain water and prevent it from running off. The water will also be drawn from the roadway drainage and from drainage of adjacent yards, and supplied by farms with excess or obtained from other sources.
The tanks will be made with tubular reinforcements that strengthen the center and an underground tank fit with an autoclave to deliver the water where needed.
Water consumption: rainwater and water recovered from the roofs and roadway drains.
PAPER
The water consumed is the water that remains in the cellulose paste. This requires 1.5 liters of water x 1 kg of dry material; thus the daily consumption in this sector is approximately 150 liters x 100 kg of paper and cardboard, with a total use of 990 lt, 840 liters of which will be recovered.
GLASS
The water consumption in the glass sector follows this formula: 6% glass produced by each citizen x 1500 citizens adds up to 135 kg of glass which must be washed 3 times with an assumed consumption of 1.5 liters of water per bottle.
If we consider that 135 kg of glass is made up of approximately 150 bottles, the consumption is 75 lt of water a day, with 70 liters recovered.
PLASTIC
The number of bottles is 250. Again in this phase the wash calls for the use of 1.5 liters of water per bottle.
Therefore, there will be a daily consumption of 375 liters with 370 liters recovered and an effective consumption of 5 lt lost through evaporation.
COMPOST
The water consumption in the composting or unsorted wastes sector is due to washes and the use of water in processing.
As regards the washes, we have planned daily water consumption as follows:
1. Washing of the plate of the scales - 4 lt
2.
Washing of the grinder - 10 lt
3.
Washing of the hopper - 10 lt
4.
Washing of the belt - 6 lt
5.
Washing of the conveyor - 4 lt
TOTAL WASH WATER, including any leakage 36 lt. For processing, on the other hand, we consider diluting (washing) the compost at 8% (12 lt of water for each kilogram of compost). Nevertheless, most of this water will be recovered and the material will be extracted from the machine at a 30% concentration (70 liters of water for every 30 kg of material). Therefore, processing a daily average of organic wastes of 690 kg, we will need 8,300 liters of water of which 1,610 lt will be consumed; when added to the 40 lt for the wash the total is 1650 lt.
The water consumption for dry material, to be separated from the wet material, is as follows: 750 kg of dry material concentrated at 50% equals 50 lt of water for each 50 kg of dry material x 750 kg of dry and wet material is the equivalent of 375 kg of dry material since the ratio between dry and wet material is considered to be 50%.
Therefore, water consumption will be 6,000 liters.
Remember that a part of the dry material will be separated with the comb belt and is nearly dry.

Total water consumption is 2520 divided by 5 days or 450 lt a day and industrial water costs € 1.14/cubic meter. If we consider that the main consumption occurs in the cellulose section and subsequently in the wet material, dry material, plastics and glass, and that all the wash water is recovered and purified, water consumption can be broken down according to the average amount of time it is used of 5 days. Therefore: water use = 15,870 divided by 5 = 3,870 lt daily use. Thus the consumption is 2,250 Lt x 5 days less 400 lt from waste recovery adds up to an effective consumption of x at 50 lt a day at a cost of € 1.14 per m3 = € 0.513 a day (cost of water).
Proposal for research to make the external air emissions produced by the center compatible with the standards in the Ronchi decree.
1-air emissions produced by the center.
And air purification before being released to the outside.
2-air turnover and purification inside the center.
3-elimination of foul odors.
Study by engineer Montanari Gianluca, general project designer for all automation for design of the electrical systems and all possible uses of clean energy and communications.
High and low voltage electrical systems.
Photovoltaic panels covering a surface of 150 square meters.
What type of electrical system provides the greatest safety must be established. It can be powered by photovoltaic panels at a cost of € 588.02/kW. Although the center requires 30 kW it is possible to see to it that the general demand does not exceed 15 kW.
On the average, for 5 hours with peaks of 20, if photovoltaic cells that produce 20 kW of power are installed, with accumulators they can reach 30 kW.
The initial cost for 20 kW would be € 113,620.51. Although this seems excessive, one must consider that 80% of this amount ― € 98,960.41 ― is paid by the government so that the real cost would be € 22,724.10, not much more than the power request from the national power company ENEL.
MAXIMUM POWER 24,99643
MAXIMUM PEAK POWER 37,49464
DAILY PLANT kWh 89,17929
From the table of calculated consumption one finds a consumption of 90 kWh which, when multiplied by the current rate of di 5 eurocent per kWh, gives a cost of 4.5 euro a day and thus 1,650 euro a year.
The photovoltaic cells can amortize this amount in 5 years (without considering any annual increases that can be made to the cost of power).
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