{"id":25844,"date":"2024-10-17T00:33:02","date_gmt":"2024-10-17T00:33:02","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/asce-2-91\/"},"modified":"2024-10-24T13:42:33","modified_gmt":"2024-10-24T13:42:33","slug":"asce-2-91","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/asce\/asce-2-91\/","title":{"rendered":"ASCE 2 91"},"content":{"rendered":"

Measurement of Oxygen Transfer in Clean Water, 2nd Edition was developed to measure the rate of oxygen transfer from diffused gas and mechanical oxygenation devices to water. The standard is applicable to laboratory-scale oxygenation devices with small volumes of water as well as to full-scale systems with water volumes typical of those found in the activated sludge wastewater treatment process. It is intended that this standard be used by engineers in the preparation of specifications for compliance testing. This test method is based upon removal of dissolved oxygen (DO) from the water volume by sodium sulfite followed by reoxygenation to near the saturation level. The DO inventory of the water volume is monitored during the rearation period by measuring DO concentrations at several points, selected so that each point senses an equal tank volume. The method specifies a minimum number, distribution, and range of DO measurements at each point. This procedure is valid for a wide variety of mixing conditions. The primary result of this testing is expressed as the standard oxygen transfer rate (SOTR). The standard also describes how clean water tests can be applied to estimate oxygen transfer rate in process water. In addition, various components of power consumption are defined; methods for measurement of gas rate and power consumption by oxygenation devices are given; and the preparation of data analysis is discussed.<\/span><\/p>\n

PDF Catalog<\/h4>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
PDF Pages<\/th>\nPDF Title<\/th>\n<\/tr>\n
2<\/td>\nAbstract
Abstract <\/td>\n<\/tr>\n
3<\/td>\nStandards
Standards <\/td>\n<\/tr>\n
5<\/td>\nForeword
Foreword <\/td>\n<\/tr>\n
7<\/td>\nAcknowledgments
Acknowledgments <\/td>\n<\/tr>\n
11<\/td>\n1.0 Scope
1.0 Scope
2.0 Summary of Method
2.0 Summary of Method
3.0 Significance and Limitations
3.0 Significance and Limitations <\/td>\n<\/tr>\n
12<\/td>\n4.0 Definitions and Nomenclature
4.0 Definitions and Nomenclature
Oxygen Transfer Rate (OTR)
Oxygen Transfer Rate (OTR)
Standard Oxygen Transfer Rate (SOTR)
Standard Oxygen Transfer Rate (SOTR)
Aeration Efficiency (AE)
Aeration Efficiency (AE)
Standard Aeration Efficiency (SAE)
Standard Aeration Efficiency (SAE)
Oxygen Transfer Efficiency (OTE)
Oxygen Transfer Efficiency (OTE)
Standard Oxygen Transfer Efficiency (SOTE)
Standard Oxygen Transfer Efficiency (SOTE)
5.0 Apparatus and Methods
5.0 Apparatus and Methods
5.1 Tank
5.1 Tank
5.2 Water
5.2 Water
5.3 Oxygenation Device
5.3 Oxygenation Device
5.4 Sampling Devices
5.4 Sampling Devices <\/td>\n<\/tr>\n
13<\/td>\nDissolved Oxygen Measurement
Dissolved Oxygen Measurement
5.6 Temperature Measurement
5.6 Temperature Measurement
5.7 Deoxygenation Chemicals
5.7 Deoxygenation Chemicals
Computer or Calculator
Computer or Calculator
Gas Flow Measurement Apparatus
Gas Flow Measurement Apparatus
Power Measurement Apparatus
Power Measurement Apparatus
6.0 Procedure
6.0 Procedure
Advance Preparation and Responsibilities
Advance Preparation and Responsibilities <\/td>\n<\/tr>\n
14<\/td>\nTest Tank Geometry and Aerator Placement
Test Tank Geometry and Aerator Placement
6.3 Water Quality
6.3 Water Quality <\/td>\n<\/tr>\n
15<\/td>\n6.4 System Stability
6.4 System Stability <\/td>\n<\/tr>\n
16<\/td>\n6.5 Initial Test
6.5 Initial Test
6.6 Deoxygenation Chemicals
6.6 Deoxygenation Chemicals
Addition of Deoxygenation Chemicals
Addition of Deoxygenation Chemicals <\/td>\n<\/tr>\n
17<\/td>\nDuring the Unsteady-State Test
During the Unsteady-State Test <\/td>\n<\/tr>\n
18<\/td>\nDissolved Oxygen Measurements
Dissolved Oxygen Measurements <\/td>\n<\/tr>\n
19<\/td>\n7.0 Data Analysis
7.0 Data Analysis
Preparation of Data for Analysis
Preparation of Data for Analysis
7.2 Parameter Estimation
7.2 Parameter Estimation <\/td>\n<\/tr>\n
20<\/td>\n8.0 Interpretation and Reporting of Results
8.0 Interpretation and Reporting of Results
Standard Oxygen Transfer Rate (SOTR)
Standard Oxygen Transfer Rate (SOTR) <\/td>\n<\/tr>\n
21<\/td>\nSpatial Uniformity and Reproducibility of K a and C Values
Spatial Uniformity and Reproducibility of K a and C Values
Standard Aeration Efficiency (SAE)
Standard Aeration Efficiency (SAE) <\/td>\n<\/tr>\n
22<\/td>\nOxygen Transfer Efficiency (OTE)
Oxygen Transfer Efficiency (OTE)
Performance Evaluation Criteria
Performance Evaluation Criteria
9.0 Reporting
9.0 Reporting <\/td>\n<\/tr>\n
23<\/td>\nReferences
References <\/td>\n<\/tr>\n
24<\/td>\nAnnex A
Annex A <\/td>\n<\/tr>\n
25<\/td>\nAnnex B
Annex B <\/td>\n<\/tr>\n
27<\/td>\nAnnex C
Annex C <\/td>\n<\/tr>\n
28<\/td>\nAnnex D
Annex D <\/td>\n<\/tr>\n
30<\/td>\nAnnex E
Annex E <\/td>\n<\/tr>\n
31<\/td>\nAnnex F
Annex F <\/td>\n<\/tr>\n
32<\/td>\nCommentary A
Commentary A
Commentary B
Commentary B <\/td>\n<\/tr>\n
33<\/td>\nCommentary C
Commentary C
Commentary D
Commentary D <\/td>\n<\/tr>\n
48<\/td>\nCommentary E
Commentary E <\/td>\n<\/tr>\n
49<\/td>\nCommentary F
Commentary F <\/td>\n<\/tr>\n
53<\/td>\nIndex
Index <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

ASCE Standard 2 Measurement of Oxygen Transfer in Clean Water<\/b><\/p>\n\n\n\n\n
Published By<\/td>\nPublication Date<\/td>\nNumber of Pages<\/td>\n<\/tr>\n
ASCE<\/b><\/a><\/td>\n1991<\/td>\n62<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":25845,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[2660],"product_tag":[],"class_list":{"0":"post-25844","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-asce","8":"first","9":"instock","10":"sold-individually","11":"shipping-taxable","12":"purchasable","13":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product\/25844","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media\/25845"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=25844"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=25844"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=25844"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}