Waste Container Raised Floor Liquid Separation
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Solution Overview
Problem
Waste collection containers often contain liquid waste and rainwater, which increases the weight of the load transported by collection trucks, leading to higher fuel consumption and the need for larger trucks, as existing containers' drainage systems are frequently obstructed by debris.
Innovation Solution
A waste collection container design featuring a raised floor with a sloped surface directing liquids into a segregated liquid collection reservoir, with a centrally located drain grate and cover to prevent clogging, and drain holes for liquid removal, separating liquids from waste and keeping them trapped during transfer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a traditional waste collection container with a simple drain opening is used, then the structure is simple and easy to manufacture, but the drain opening is frequently obstructed by debris preventing effective liquid drainage
Solution Approach 1:
The container is segmented into two distinct chambers: an upper waste collection chamber and a lower liquid collection reservoir separated by a raised floor. This segmentation allows liquids to be collected in the lower chamber while solids remain in the upper chamber, preventing clogging of drainage pathways and enabling effective separation without complex mechanisms
Solution Approach 2:
A sloped raised floor acts as an intermediary element between the waste collection chamber and the liquid reservoir. The sloped surface directs liquids toward a centralized drain grate while preventing direct contact between solid waste and the drainage system, serving as a mediator that enables effective drainage without clogging
2Adaptability or versatility
If rain water and liquid waste are collected in the container, then the container can accommodate mixed waste types, but the liquid content significantly increases the weight load transported by collection trucks
Solution Approach 1:
Liquids are extracted from the mixed waste through gravity-driven flow down the sloped raised floor into the lower collection reservoir. The separated liquids can then be drained away through drain holes in the container bottom, removing the weight burden from the transported load while maintaining the container's ability to accept mixed waste types
Solution Approach 2:
The container segments waste into solid and liquid components through the raised floor design. Solids remain in the upper chamber for transport to landfill, while liquids collect in the lower reservoir and are drained separately, reducing the overall weight transported by collection trucks
3Reliability
If a raised floor with sloped surface and centralized drain grate is implemented, then liquid drainage effectiveness is improved, but the device complexity increases
Solution Approach 1:
The raised floor is designed with localized variations in height and slope, creating specific flow paths that direct liquids toward the centralized drain grate. This local quality modification enables effective liquid separation without requiring complete structural redesign of the entire container
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This design minimizes the weight load carried by trucks by isolating and draining liquids from waste, reducing fuel consumption and truck size requirements.
Implementation Method 1
The top surface of the raised floor is sloped downwardly from the outer periphery to a central elongate grate to direct rain water and other liquid in the primary collection chamber to the grate and into the lower liquid collection chamber
Data Source
AI summary
A waste collection container has vertical walls extending up from a horizontal base and a raised floor supported on a ledge above the base to define a primary collection chamber above the raised floor and a liquid collection reservoir between the base and the raised floor. The top surface of the raised floor is sloped downwardly from the outer periphery to a central elongate grate to direct rain water and other liquid in the primary collection chamber to the grate and into the lower liquid collection chamber. When the waste collection container is inverted to dump the collected waste into a truck, water and other liquid remains trapped in the lower reservoir, thereby reducing the load weight of the truck. One or more drain holes near the base of the container allow the liquid to be drained out of the liquid collection reservoir.