Textured Core Sheets for Wastewater Biomass Retention

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Solution Overview

Problem

Conventional subsoil fluid drainage and treatment systems lack effective promotion of bio-impacted fluid adherence and retention on core sheets, limiting the growth of organic deposits and treatment efficacy.

Innovation Solution

Textured core sheets with a primary surface texture and secondary cuspations are used to enhance fluid contact and retention, formed by imparting surface irregularities through a texturizing process before creating cuspations, which are then cut to desired dimensions for integration into fluid treatment units.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If conventional smooth core sheets are used, then structural integrity is maintained, but fluid adherence and organic deposit growth are limited

Engineering Contradiction:
Improvetreatment efficacyVSAvoidsurface texture application
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

The patent applies parameter changes by modifying the surface texture of the core sheets through controlled texturizing processes. The surface is transformed from smooth to textured with specific characteristics (roughness, porosity, cuspations) to enhance fluid adherence and organic deposit growth, directly addressing the treatment efficacy improvement while maintaining manufacturability through established texturizing techniques

Inventive Principle:
Principle #35Parameter changes

2Quantity of substance

If surface texture is added to core sheets, then fluid adhesion and biomat growth are enhanced, but manufacturing complexity increases

Engineering Contradiction:
Improvebiomat-like organic depositsVSAvoidcore sheet structure
Core Design Contradiction:
Quantity of substanceVSDevice complexity

Solution Approach 1:

The patent applies local quality by introducing surface texture only where needed for fluid interaction, while maintaining the overall structural integrity of the core sheet. The texturized surface is localized to the portions of the core sheet that contact the fluid, enhancing biomat growth without complicating the entire core sheet structure or manufacturing process

Inventive Principle:
Principle #3Local quality

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 textured core sheets significantly increase biomat-like organic deposits on both the core sheets and surrounding fabric, improving wastewater treatment efficacy by promoting fluid adhesion and biomaterial growth, thereby enhancing treatment capacity.

Implementation Method 1

the core sheets promote adherence and retention of bio-impacted fluid, thereby encouraging growth of additional organic deposits

Methodology Applied
Scientific EffectAdhesion: Adhesive

Implementation Method 2

The core sheets have a primary surface texture on substantially the entire outer surface. The core sheets may additionally include secondary corrugations in one or more directions of the sheet

Methodology Applied
Scientific EffectSurface area effect:

Data Source

PatentUS20230173729A1Textured Core Sheets for Fluid Drainage Unit
Publication Date: 2023.06.08 ELJEN CORP
  • US20230173729A1 patent drawing
  • US20230173729A1 patent drawing
  • US20230173729A1 patent drawing

AI summary

A core sheet includes a primary textured surface and separate secondary cuspations or corrugations. The core sheets are configured for use within a fluid or wastewater treatment unit that typically includes one or more fabric layers. The primary textured surface enhances retention of wastewater fluid received by the unit, which over time causes an increase in build-up of biomatter on the surface, which in turn enhances the efficacy of treatment of the wastewater. An inline process of making the core sheet includes extrusion forming a smooth flat sheet from raw polymeric material and immediately feeding the smooth flat sheet through texturizing rollers, followed by rolling flat textured sheets. Cuspations are added to the flat textured sheets, optionally at a different site, and then cut to preferred dimensions for incorporation into a wastewater unit.