Evaluation of the Bench-scale Testing of the Zimpro Wet Air

1,78

MB

Oxidation Process to Treat NSCMP Neutralents and Binary

86

stron

Product Feeds

3402

ID

Department of Defense

2002

rok

Table of Contents

1 Introduction.. 1

1.1 Objectives 1

1.1.1 Treat Simulant NSCMP Neutralent and Binary Product Feeds .2

1.1.2 Identify and Demonstrate Post-treatment Methods for WAO Effluents.2

1.1.3 Verify Appropriate Materials of Construction for Anticipated Pilot-scale Testing 2

1.1.4 Develop Full-scale Processing Concept.2

1.2 Evaluation Criteria .. 2

1.2.1 Treat Simulant NSCMP Neutralent and Binary Product Feeds .3

1.2.2 Identify and Demonstrate Post-treatment Methods for WAO Effluents.3

1.2.3 Verify Appropriate Materials of Construction for the Anticipated Pilot-scale Testing .3

1.2.4 Develop Full-scale Processing Concept.4

2 Background 5

2.1 Technology Evaluation and Development for NSCMP 5

2.2 Wet Air Oxidation 6

2.3 Post-Treatment .. 7

2.3.1 Biotreatment.7

2.3.2 UV Oxidation..8

3 System Description. 9

3.1 Bench Scale WAO (Autoclave) Reactors 9

3.2 Materials of Construction Testing (100 hr MOC Tests) 11

3.3 Post Oxidation (UV/O3) Test Equipment.. 12

4 Test Description. 14

4.1 Test Plan 14

4.1.1 Materials of Construction Screening Tests.14

4.1.2 Work-up Testing..14

4.1.3 Performance Testing ..15

4.2 Feeds Tested. 15

4.2.1 Neutralent Materiel.15

4.2.2 Binary Product Materiel16

4.3 Test Procedure – Materials of Construction. 16

4.4 Test Procedure – WAO Testing . 17

4.5 Test Procedure – UV/O3/H2O2 Post-treatment 17

5 Test Results & Discussion – Materials of Construction Screening.. 19

5.1 Tests conducted.. 19

5.2 MOC Coupon Preparation and Examination Procedures.. 20

5.3 Results of MOC Coupon Evaluation 21

5.4 Discussion of Results .. 23

5.4.1 MOC Test 1 – H neutralent simulantat 310 oC and pH 10 23

5.4.2 MOC Test 2 - H neutralent simulantat 310 oC and pH 12.25

5.4.3 MOC Test 3 - QL at 330 oC and pH 1026

6 Test Results & Discussion – WAO. 30

6.1 Work-up Testing. 30

6.2 Performance Testing. 31

6.3 Feed Analysis .. 32

6.3.1 Simulant analysis .32

6.3.2 Reactor Content Analysis .33

6.4 Residual characteristics.. 34

6.4.1 Gases..34

6.4.2 Liquid Residuals ..36

6.4.3 Solids..39

6.5 Destruction Efficiencies . 39

6.5.1 Overall Destruction Efficiency39

6.5.2 C-S and C-P Bond Destruction ..40

6.5.3 Specific Organic Compound Destruction41

7 Test Results & Discussion – Post Treatment With UV/O3/H2O2 42

7.1 Work-up Testing. 42

7.1.1 Post-Oxidation Screening Test Feed Description.42

7.1.2 Post-Oxidation Work-up Testing43

7.1.3 Selection of Post-Treatment Conditions..44

7.1.4 Final Selected Post-Oxidation Method.45

7.2 Performance Testing. 45

7.3 Post-treatment Residual Characteristics. 46

7.3.1 Gases..46

7.3.2 Liquid Residuals ..46

7.3.3 Solids..49

7.4 Destruction Efficiencies . 49

7.4.1 Destruction Efficiency ..49

7.4.2 C-S and C-P Bond Destruction ..50

8 Combined WAO and Post-treatment Performance 51

9 Applicability to NSCMP.. 53

9.1 Zimpro Concept Design . 53

9.1.1 Wet Air Oxidation Stage ..54

9.1.2 Advanced Oxidation (UV/O3) Stage 54

9.1.3 Fluoride/Phosphorus Precipitation Stage 54

9.2 Estimated Capital and Operating Costs.. 57

9.2.1 Capital and Operating Cost - WAO..57

9.2.2 Capital and Operating Cost – Post Treatment ..57

10 Conclusions .. 58

11 Recommendations

12 References

Appendix A – Analytical Report prepared by Southwest Research Institute