Sustainable Water Technology

Clean Water,
Clean Life

Meet the Renature Filter, an affordable water filtration system

We specialize in creating effective and reusable water purification solutions that cater to various needs. Our focus is on affordability and customization for your specific requirements.

Meet the Team
Our Innovation

A New Approach to Water Filtration

Conventional filters are a temporary fix - creating waste while failing to address the core problem of water pollution.

The Renature Filter represents a fundamental shift. Made from advanced materials science, we turn common 3D-printed polylactic acid (PLA) into a high-performance, reusable adsorption device. Our PLA surface engineering makes a stable, graphene oxide coating that actively captures pollutants where disposable filters simply trap them and clog themselves.

It's not just an ordinary water treatment device, it's a fully customizable, zero secondary pollution, high-capacity purification platform designed for labs, remote settings, and point-of-use applications.

Renature Filter innovation - close-up of water purification technology
The Product

Renature Filter System

A modular, 3D-printed filtration system with biomimetic flow channels and graphene oxide coating for effective pollutant capture.

Renature Filter - 3D CAD render of assembled stackable module

Stackable Modular Design

Compact, modular PLA filter body with W-shaped hose interfaces to reduce slipping and leakage. Modules can be stacked in layers to scale throughput.

Renature Filter - Exploded view showing internal glomerulus-like flow channels

Biomimetic Flow Channels

Inspired by the kidney's glomeruli, AI-assisted generative design creates winding channels that maximize water-surface contact in minimal volume.

Renature Filter - Lab components showing PLA to graphene oxide coating stages

Surface Engineering Process

From white PLA scaffold to graphene oxide coated filter. NaOH etching + KH550 coupling agent creates durable anchoring for the GO active layer.

PLA
Biodegradable Base
GO
Graphene Oxide Coating
3D
Printed & Customizable
6+
Reuse Cycles
The Process

How It Works

A new approach to water filtration using advanced materials science and biomimetic design principles.

1

Activate and Attract

We start with a 3D-printed, biodegradable PLA structure. Its surface is activated using a lab-optimized chemical etching process, creating a rough, porous landscape. A silane coupling agent is then applied onto this surface, forming a durable molecular 'glue' to bind our active adsorbent.

2

Capture and Contain

A uniform coating of graphene oxide (GO) is chemically immobilized onto the prepared PLA scaffold. When contaminated water flows through, pollutants like dyes and pharmaceuticals are captured through multiple mechanisms. First, they are strongly adsorbed onto the GO via pi-pi interactions and electrostatic forces while being securely contained within the filter's engineered matrix.

3

Regenerate and Reuse

Unlike single-use filters, Renature Filter is designed for multiple cycles. Once saturated, the captured pollutants can be desorbed in a controlled regeneration process. Laboratory tests confirm the coating's exceptional stability, retaining over 86% of its structure in water after 14 days and maintaining over 75% of its original adsorption capacity after 6 reuse cycles.

Key Features

Why Choose Renature Filter

Our approach combines advanced materials science with sustainable design principles to deliver effective, reusable water purification.

Biodegradable PLA Base

3D-printed from polylactic acid, our filter scaffold is fully biodegradable and customizable to your specific needs.

Graphene Oxide Coating

Advanced GO coating captures pollutants through pi-pi interactions and electrostatic forces, removing dyes and pharmaceuticals.

Reusable Design

Unlike single-use filters, maintain over 75% adsorption capacity after 6 cycles. Regenerate and reuse for sustainable purification.

Zero Secondary Pollution

Immobilized coating prevents nanoparticle release. No waste stream, no secondary pollution - just clean water.

Designed For

Research Laboratories

Modular, low-infrastructure filtration prototypes for controlled experiments.

Remote Communities

Decentralized purification for areas lacking centralized treatment infrastructure.

Industrial Wastewater

Handle dye, chemical, and pharmaceutical effluents with low operating costs.

Point-of-Use

Home and business water purification with customizable solutions.

Biomimicry + AI Design

Inspired by the Human Kidney

We borrowed a design principle from the human kidney: maximize fluid-surface contact in a tiny volume. The kidney's glomeruli increase contact area through winding capillary-like channels in a small space.

Using 3D printing and AI-assisted generative design in Fusion 360, we create glomerulus-like channels that guide water through high-contact pathways - then stack modules to scale throughput without redesigning the core system.

  • Detachable top/bottom covers for easy coating before assembly
  • W-shaped hose interfaces to reduce slipping and leakage
  • Stackable modular design for scalable throughput
Who We Are

Meet Our Team

Passionate about saving the environment and making clean water accessible to all.

Aaron Bai - Innovation & Technical Design

Aaron Bai

Innovation & Technical Design

Aaron has always been passionate about saving the environment. As the tech person for GreenSurface, he leads the scientific development, combining his passion and scientific skills to make a viable material solution. He drives the experimental design, lab testing, and data analysis.

Serena Qu - Market Strategy & Customer Adoption

Serena Qu

Market Strategy & Customer Adoption

Serena leads the project's market strategy and commercialization planning, defining target customers and go-to-market pathways to ensure scalability and real-world adoption.

FAQ

Frequently Asked Questions

Learn more about how the Renature Filter works and what makes it different.

Get In Touch

Contact Us

Feel free to contact us with any questions or concerns! We're excited to discuss how the Renature Filter can help with your water purification needs.

Send us a message

Our Commitment

At Green Surface Purification, we provide affordable and customizable water purification systems designed for effective filtration. Our mission is to enhance water quality and accessibility for all.

Meet the Team