Vector Control Screen for Stormwater Systems
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Solution Overview
Problem
Existing stormwater treatment and storage systems are ineffective in preventing mosquito and other vector insect species from accessing standing water, as conventional methods like insecticides and mechanical devices are not scalable or applicable in most systems, and standalone vector control screens can clog stormwater systems with debris.
Innovation Solution
Integration of a vector control screen with automatic retractable screens (ARS) at curbside inlets, grated inlets, and trench drains, allowing the screen to move between positions to block insects while allowing water flow, and incorporating a mosquito capture structure within the catch basin to prevent ingress and egress of vector species.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a standalone vector control screen is used to block insects, then mosquito population is reduced, but trash and debris are prevented from entering the stormwater system causing clogging
Solution Approach 1:
The screen is divided into multiple independent screening blades that can move individually. Each blade can block insects while allowing water to pass through, and the segmented structure enables debris to be diverted around the screen rather than causing complete blockage
Solution Approach 2:
The screening blades are designed to move independently in response to water flow and debris accumulation. The blades can tilt or retract when encountering debris, maintaining open passages for water flow while continuing to block insects
2Object-affected harmful factors
If conventional insecticide methods are used to control mosquitoes, then mosquito population is reduced, but the methods are not scalable and cannot be applied to most stormwater systems
Solution Approach 1:
The screen structure serves multiple functions simultaneously: it blocks insect ingress, allows water flow through the system, and can be integrated with existing stormwater infrastructure at curbside inlets, grated inlets, and trench drains. This multi-functionality makes it scalable across different stormwater system types
3Object-affected harmful factors
If mechanical devices like aeration fountains are used to prevent standing water, then mosquito population is reduced, but the devices are not applicable or scalable in most stormwater systems
Solution Approach 1:
Instead of using complex mechanical aeration devices, the invention extracts and removes the problem at its source by blocking insect access to standing water through simple screens at inlets. This eliminates the need for scalable mechanical aeration systems throughout the stormwater network
Data Source
AI summary
An apparatus for controlling ingress and egress of biologically transmitting insect species to standing water disposed within a stormwater treatment and water storage system.