Design a composting machine for vendors and retailers,helping them deal with plant waste, changing it into fertilizer and giving them to customers as a feedback .
During the process of growing fruit and vegetables in rural area, there is generated a huge amount of plant waste generated. Loss and waste is typically about 10%, but can approach 50% for some products.
Across the products studied, the levels of waste at retail were low at between 0.5-4%. However, this is still a direct economic loss and cause of environmental damage. The majority of waste will be mixed waste to be disposed in landfill which also located remotely, in-vessel composting or for energy recovery to anaerobic digestion. It can’t be fed to livestock either unless it is produced specifically. Unacceptable chemical will reside in the animals’ body.
Products studied indicated that of the total retail waste produced some 361,800 tonnes (25%) is food waste. Furthermore, an analysis of waste management routes by material type in the same report noted that for the retail and distribution waste streams, 64% (234,000) is food waste that is sent to landfill or other disposal routes.(From WRAP’s report 2) This waste presents a significant opportunity for both waste prevention and diversion.
USERS: Stallholders & Vendors
Stallholders and vendors are who play an important roles in fruit and vegetable retail, holding the key points to recycle retail waste.
The information from the secondary research indicated some important key points of stallholders’ routine work:
Stallholders need to get up very early to arrange the stall and catch the earliest trade in the market.
Their daily takings are influenced by the weather and particular events throughout the year.
Market Problems: Forklift racing, turf wars, price and food competition Offering freebies that competitors don't can be something simple - but utterly charming.
Stallholders and vendors need a new method for plant waste recycling. It needs to be conducted and arranged easily to avoid adding to their working time.
Utilize cellulose, which is used for cellulose decomposition, to help microbes speed up the composting process, and transform residues into fertilizer immediately.
The fertilizer can be used to give back to customers.
During the research, it was discovered that stallholders would deliver freebies to target customers in order to underpin the current customer base.
This marketing approach is provided as a consideration to new entrants.
Inspired by the experience shared by stallholders, the idea that transferring plant waste into fertilizer and sending it as feedback to customers was identified.
Over 64% of plant residue is thrown to landfill, which could have been effectively utilized by stallholders previously. Not only the regenerating concept indicates the sustainable awareness developed by stallholders, but showcases the trustworthy recycling procedure to Eco-friendly consumers as well.
The leftovers are mainly rotten vegetables and fruits that remain unsold and expired.
Stallholders (Users) can collect plant waste and put it into the machine.
2. Grinding & Sterilizing
The machine starts operating after pushing the power button. The blades then will cut plant waste into fine pieces in order to increase contact surface.
The temperature will be heated to 120 degrees for sterilization.
3. Composting (fermentation)
Next, the plant waste will be sent to another tank that contains cellulose before the composting process will starts.
The temperature will be maintained at between 60 degrees to 70 degrees (the best temperatures where the microbes actively work)
4. Dehydration & pressurizing
Partially decomposed complete fertilizer will fall into the heating tank, with high-temperature for dehydration.
When the user operates the machine, the fertilizer will be mixed with glue and seeds to form fertilizer / sower bricks.
This bricks then fall into the consumers’ hands.
The side of the machine is designed to be flat, so that the machine can be stacked, stored and transported easily.
Its length and width are set to be 400mm x 600mm, which is the most common size seen in fruit and vegetable packages.
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