Barrier to prevent spread of soil contamination

US5520482A · kind A · utility

Assignee

• Rutgerswerke Aktiengesellschaft · DE

Inventors

• Franz D. Oeste · Kirchhain, DE
• Joachim Kempfert · Kronberg, DE

Key dates

• Filing date: Apr 10, 1995
• Grant date: May 28, 1996
• Expiry date: Apr 10, 2015

Classification

• Technology area (CPC E): Fixed Constructions
• CPC primary: E02D31/00
• WIPO field: Environmental technology
• WIPO sector: Chemistry

Abstract

A soil barrier to prevent the spread of harmful substances in the soil or ground water based on humic substances precipitated in the soil and a process for its creation.