Mobile Wastewater Clarification Apparatus with Multi-Stage Filtration
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Solution Overview
Problem
Existing vehicle-mounted portable apparatuses for wastewater clarification and disinfection from road drainage inlets and tunnels are limited to coarse separation by flocculation and settling, without comprehensive treatment to restore water quality, and have difficult-to-clean sludge compartments and impractical sludge discharge systems.
Innovation Solution
A vehicle-mounted apparatus with a sludge collecting tank divided into three compartments, multiple filtration stages, pH adjustment and disinfection additive units, a cyclone device for water separation, and turbidity control, enabling finer filtration, sludge separation, and safe water discharge monitoring.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If coarse separation by flocculation and settling is used, then the apparatus structure is simpler, but the water quality restoration is insufficient
Solution Approach 1:
The treatment process is divided into multiple sequential stages: coagulation-flocculation, sand filtration, activated carbon filtration, and disinfection. Each stage addresses specific contaminants, transforming a single complex unit into multiple functional modules that collectively achieve comprehensive water quality restoration while keeping individual components manageable.
Solution Approach 2:
Intermediary substances are introduced at each treatment stage: coagulants (alum, ferric chloride) for particle aggregation, sand as a physical filter medium, activated carbon for adsorption of organic contaminants, and disinfectants (chlorine, ozone) for pathogen elimination. These intermediaries enable progressive purification without requiring overly complex equipment.
2Productivity
If sludge is confined in compartments for separation, then the filtration efficiency is improved, but the cleaning difficulty increases
Solution Approach 1:
The sludge collection system is segmented into multiple compartments (first sludge collection compartment, second sludge collection compartment, third sludge collection compartment) that can be independently accessed and cleaned. Each compartment serves a specific filtration stage, allowing targeted maintenance without shutting down the entire system and enabling easier cleaning of individual sections.
Solution Approach 2:
The partition walls between compartments are designed to be movable or removable, transforming static enclosed spaces into dynamically accessible chambers. This allows operators to open and clean specific compartments as needed, maintaining filtration efficiency while significantly improving ease of maintenance.
3Manufacturing precision
If multiple treatment stages are added, then the water quality is improved, but the device complexity increases
Solution Approach 1:
The treatment apparatus integrates multiple functions into a single mobile unit: coagulation-flocculation, sand filtration, activated carbon filtration, disinfection, sludge collection, and water quality monitoring. This multi-functional integration achieves comprehensive water quality improvement while consolidating what would otherwise be separate complex systems into one unified portable device.
Solution Approach 2:
The system incorporates automatic control features including pH monitoring and adjustment, turbidity sensing, and automated disinfectant dosing. These self-service capabilities reduce the need for manual intervention and complex operational procedures, allowing multiple treatment stages to function cohesively with minimized operational complexity.
4Ease of operation
If sludge discharge is simplified, then the operation ease is improved, but the separation efficiency may deteriorate
Solution Approach 1:
Sludge discharge is segmented by compartment, with each sludge collection compartment having its own dedicated discharge outlet. This allows operators to discharge sludge from individual compartments independently based on accumulation levels, simplifying operation while maintaining separation efficiency by preventing cross-contamination between different sludge streams from different treatment stages.
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
The apparatus provides comprehensive water treatment including pH adjustment, heavy metal separation, and disinfection, ensuring safe discharge and practical sludge handling, while continuously monitoring water quality to prevent environmental contamination.
Implementation Method 1
a cyclone device for separating the water from the sludge
Implementation Method 2
a first filter for coarse filtering of the sludge in the tank
Implementation Method 3
a second filter for finer filtration with respect to said first filter
Implementation Method 4
collection and settling means for the water separated from the sludge
Data Source
Figure 1
AI summary
A vehicle-mounted portable apparatus (10) for clarification and disinfection of wastewater produced by the washing of road drainage inlets and drains and tunnels, characterized in that it comprises – a sludge collecting tank (11), – a first filter (17) for coarse filtering of the sludge in the tank, – a second filter (18) for finer filtration with respect to the first filter (17), – a dosage unit (19) for pH adjustment additives, – mixing means (20) for the addition of additives for purifying and disinfecting the sludge, – a cyclone device (23) for separating the water from the sludge, – collection and settling means (24) for the water separated from the sludge, – a hydraulic line (25) for the separated water, for connection between the separation cyclone (23) and the collection and settling means (24) for the separated water, with a dosage unit (26) for disinfection additives, – a hydraulic line (27) for connection to a high-pressure pump (28) for propelling the treated water toward generic uses, – a hydraulic line (29) for discharging treated water, provided with a turbidity control sensor (30).