Modular Liquid Waste Treatment System with Segmented Distribution

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Solution Overview

Problem

Current liquid waste treatment methods, such as aerobic and anaerobic digestion, face inefficiencies in treating wastewater and septic effluent, particularly in reducing biochemical oxygen demand (BOD) and requiring extensive land area for treatment systems.

Innovation Solution

A modular liquid waste treatment system featuring a distribution unit with perforated sidewalls and treatment fins filled with a porous medium, surrounded by an impermeable fabric, which facilitates bacterial digestion and efficient fluid communication for treating liquid waste, including sewage, septic effluent, and industrial effluent.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If conventional aerobic or anaerobic digestion systems are used, then liquid waste can be treated, but the land area required for treatment is extensive

Engineering Contradiction:
Improvewaste treatment efficiencyVSAvoidland area required
Core Design Contradiction:
ProductivityVSArea of stationary object

Solution Approach 1:

The distribution unit is divided into multiple compartments (first compartment, second compartment, third compartment) separated by walls with openings. This segmentation allows simultaneous aerobic and anaerobic treatment processes within a compact structure, increasing treatment efficiency while reducing the overall land area required compared to conventional single-process systems.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The treatment fins are positioned within the compartments of the distribution unit, with porous media nested inside the fin structures. This nested arrangement maximizes the treatment surface area within a compact volume, allowing extensive treatment capacity without proportionally increasing the external dimensions and land area occupied.

Inventive Principle:
Principle #7Nested doll (Nesting)

2Productivity

If conventional liquid waste treatment systems are used, then waste can be treated, but the BOD reduction efficiency is insufficient

Engineering Contradiction:
ImproveBOD reduction efficiencyVSAvoidtreatment effectiveness
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

The system creates periodic flow patterns through the distributed openings in compartment walls, allowing wastewater to cyclically move between aerobic and anaerobic zones. This periodic action enhances bacterial digestion efficiency by alternately exposing contaminants to different microbial environments, achieving superior BOD reduction of 90% or greater compared to conventional single-mode systems.

Inventive Principle:
Principle #19Periodic action

Solution Approach 2:

Different compartments provide different local environments (aerobic vs. anaerobic conditions) to optimize specific treatment functions. The treatment fins with porous media in each compartment create localized high-surface-area zones for bacterial attachment, ensuring effective BOD reduction while maintaining system reliability through distributed treatment capacity.

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 system effectively reduces BOD by 90% or greater and requires less land area, making it suitable for treating wastewater from multiple bedrooms in a compact and efficient manner.

Implementation Method 1

In the bacterial process known as aerobic digestion, microorganisms break down biodegradable material in the presence of oxygen

Methodology Applied
Scientific EffectAerobic digestion: Aerobic Digestion

Implementation Method 2

In the bacterial process known as anaerobic digestion, microorganisms break down biodegradable material in the absence of oxygen

Methodology Applied
Scientific EffectAnaerobic digestion: Anaerobic Digestion

Implementation Method 3

a distribution unit having an interior and an exterior and including a sidewall portion defining one or more passageways provided by a plurality of perforations in a mid-portion of the sidewall portion

Methodology Applied
Scientific EffectFluid flow through perforations:

Implementation Method 4

a sleeve comprising an impermeable fabric which surrounds the distribution unit, housing a common space from which the plurality of treatment fins are fed

Methodology Applied
Scientific EffectPhysical containment by impermeable fabric: Physical Containment

Data Source

PatentEP3145879B1Modular liquid waste treatment system and method
Publication Date: 2019.11.27 PRESBY PATENT TRUST
  • EP3145879B1 patent drawingFigure 1A~1D
  • EP3145879B1 patent drawingFigure 2A~2C
  • EP3145879B1 patent drawingFigure 3A~3B

AI summary

A modular liquid waste treatment system is disclosed. In accordance with some embodiments, the system includes a central distribution unit and one or more treatment fins in flow communication therewith. The distribution unit may be configured to receive liquid waste from a given source and distribute that waste, at least in part, to one or more treatment fins. In turn, bacteria present in a given treatment fin treat the liquid waste, and the resultant treated liquid may drain from the fin to the surrounding environment. In some embodiments, a given treatment fin may include porous media providing a large surface area on which bacteria may grow to facilitate treatment. The system may be installed in and/or above the ground, and in some cases may be surrounded, at least in part, with treatment sand and/or other treatment media. The system may be used in aerobic and/or anaerobic processing of liquid waste.