**EXHIBIT        31.2**

**CERTIFICATION**

**CERTIFICATION        OF THE CHIEF FINANCIAL OFFICER**

**PURSUANT        TO**

**SECURITIES        EXCHANGE ACT FULES 13A-14 AND 15D-14**

**AS        ADOPTED PURSUANT TO SECTION 302**

**OF        THE SARBANES-OXLEY ACT OF 2002**

| 1.   | I                    have reviewed this quarterly report on Form 10-QSB of ThermoEnergy                    Corporation; |
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| 2.   | Based                  on my knowledge, this quarterly report does not contain any untrue                  statement of a material fact or omit to state a material fact necessary                  to                  make the statements made, in light of the circumstances under which                  such                  statements were made, not misleading with respect to the period                  covered by                  this quarterly report; |
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| 3.   | Based                  on my knowledge, the financial statements, and other financial                  information                  included in this quarterly report, fairly present in all material                  respects                  the financial condition, results of operations and cash flows of                  the                  registrant as of, and for, the periods presented in this quarterly                  report; |
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| 4.   | The                  Company’s other certifying officer and I are responsible for establishing                  and maintaining disclosure controls and procedures (as defined                  in Exchange                  Act Rules 13a-15(e) and 15d-15(e)) for the registrant and, accordingly,                  have: |
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| 5.   | The                  Company’s other certifying officer and I have disclosed, based on my most                  recent evaluation in internal control over financial reporting,                  to the                  registrant’s auditors and the audit committee of registrant’s board of                  directors (or persons performing the equivalent                  functions): |
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|   |                                                                                                                                                                  | /s/ Andrew                T. Melton |
|   | Andrew T. Melton, Executive Vice President                  andChief                  Financial Officer (Principal Financial and Accounting                  Officer) |

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