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17-25 October 2026

Liquid Relic

Glass made with residues from wastewater treatment.

Hosted by Studio Billie van Katwijk

This project is now archived and was part of DDW26

Event type

Exhibition

Liquid Relic by Billie van Katwijk
Liquid Relic by Billie van Katwijk
Abel Minnée
Liquid Relic transforms residues from wastewater treatment into glass. Through material samples, objects and jewellery, Billie van Katwijk explores the potential of these overlooked materials and makes hidden flows within our water system visible.

From residue to glass

Wastewater treatment does not make unwanted materials disappear. After water is cleaned, residues remain. Liquid Relic investigates what these overlooked materials can become.

Billie van Katwijk incorporates residues from wastewater treatment into glass, where they influence colour and texture. Through experiments with fusing, slumping and lampworking, the research develops into a growing material archive alongside objects and jewellery.

At Dutch Design Week, Liquid Relic brings these different stages together: from raw residues and glass samples to prototypes and wearable objects.

Liquid Relic by Billie van Katwijk
Liquid Relic by Billie van Katwijk
Abel Minnée
Liquid Relic by Billie van Katwijk
Liquid Relic by Billie van Katwijk
Abel Minnée
Liquid Relic by Billie van Katwijk
Liquid Relic by Billie van Katwijk
Abel Minnée
Liquid Relic by Billie van Katwijk
Liquid Relic by Billie van Katwijk
Abel Minnée

About Studio Billie van Katwijk

Studio Billie van Katwijk is an Amsterdam-based design practice exploring overlooked materials and the systems they move through. Through material research, objects and installations, the studio investigates how waste streams can be understood and valued differently.