| 摘要 |
<p>An improved deep remediation injection system for in-situ remediation of contaminated soil and ground water. The system includes a soil penetrating lance (10) for injecting at least two different highly-pressurized fluids into said contamineted soil as said soil penetrating lance (10) is inserted for penetration therein. The soil penetrating lance (10) has at least an upper set of injection ports (28), the upper set of injection ports (28) being generally radially spaced-apart on said lance (10), and at least one lower set of injection ports (30), the lance (10) having an average width in the vicinity of the upper set of injection ports (28). The lance (10) further includes substantially fluidically first and second conduits (12, 24) leading, respecively, to the lower set of injection ports (30) and the upper set of injection ports (28).</p> |
