Design and Development of Food Waste Grinder

Food waste is a worldwide problem and is cost to be disposed and nothing is gained from it on the contrary it causes fission of harmful gases. According to a report, 40% of food in Pakistan is wasted. An estimated 36 million ton of food is wasted in Pakistan every year. Solid waste management is a b

Project Title

Design and Development of Food Waste Grinder

Project Area of Specialization

Mechanical Engineering

Project Summary

Food waste is a worldwide problem and is cost to be disposed and nothing is gained from it on the contrary it causes fission of harmful gases. According to a report, 40% of food in Pakistan is wasted. An estimated 36 million ton of food is wasted in Pakistan every year. Solid waste management is a big problem and waste water treatment is a feasible solution to the problem. In waste water treatment the food is converted into the slurry. food waste grinders are defined as a device, usually electrically powered, installed under a kitchen sink between the sink's drain and the p-trap. The grinder shreds food waste into pieces small enough—generally less than 2 mm (0.079 in)—to pass through internal household plumbing. These small pieces are then combined with enough water to make a slurry, sending the debris from the kitchen sink into the municipal wastewater system, thereby converting a solid organic waste into a liquid/solid waste transferring the food waste from one waste stream to another. Food waste grinders, also commonly known as ‘garburators TM’, food waste disposers, or simply food grinders, use both water and energy to convert food waste into a slurry that is disposed of via the building's sewer piping, through the municipality’s sewer network and pumping stations and ultimately to the wastewater treatment plant.

Project Objectives

To estimate the design parameters of the food waste grinder

To design the food waste grinder

To develop the food waste grinder

To test the performance of the food waste grinder

To convert food waste into slurry

Project Implementation Method

The project implementation starts with reviewing the various available designs of food waste grinders. An analytical study will be conducted to select design parameters for the proposed grinders. Since the performance of food waste grinder depends upon the characteristics of food waste, food waste characteristics will be studied based on literature. In third stage, some food waste samples will be collected and laboratory tests will be conducted to analyze the food waste characteristics.  Theoretical and practical results of food waste characteristics will be compared to finalize the grinder design parameters. After finalizing the design parameters, material selection will be done for the various components of the grinder. Material selection will follow the quality and safety standards. Based upon standards, the sink, grinder position, an electric  motor, plastic pipes of prescribed specifications and standards will be obtained from appropriate vendors. 

The details of design are provided in technical section. The working of grinder is such that the sink is inlet is to be exposed to the waste to be grinded. The sink will be joined to the grinder and food waste will be feed through the sink. The outlet of the grinder will produce the slurry which can be used as the inlet for the anaerobic digester. The grinder will work on the outer energy source for its function.

Benefits of the Project

On its successful completion, the project will offer environmental, social and health benefits.  

Public health improvement by reducing open dumping of food waste 

Environmental pollution control through solid waste treatment

Utilization of food waste 

Output of it can be used as input for anaerobic digester

Technical Details of Final Deliverable

The main components of the food waste grinder are:

Hopper / sink 

Motor 

Spinning metal plate (flywheel)

Impellers 

Grinding ring 

Final Deliverable of the Project

Hardware System

Core Industry

Manufacturing

Other Industries

Energy

Core Technology

Clean Tech

Other Technologies

Shared Economy

Sustainable Development Goals

Good Health and Well-Being for People, Affordable and Clean Energy, Industry, Innovation and Infrastructure, Sustainable Cities and Communities, Climate Action, Life on Land

Required Resources

If you need this project, please contact me on contact@adikhanofficial.com