Detail of GB 50334-2002

Introduction of GB 50334-2002

1.0.1 This code is formulated with a view to strengthening the quality management of municipal sewage treatment plant engineering, defining the quality acceptance requirements of municipal sewage treatment plant engineering, and guaranteeing the engineering quality. 1.0.2 This code is applicable to construction quality acceptance of newly-built, extended and renovated municipal sewage treatment plant engineering. 1.0.3 The content and inspection method not concerned in Quality Acceptance Code for Municipal Sewage Treatment Plant Engineering shall comply with the current relevant codes and standards of the nation. 1.0.4 Quality acceptance of municipal sewage treatment plant engineering shall not only comply with this code, but also the current relevant codes and standards of the nation.

Contents of GB 50334-2002

1 General Provisions 1 2 Terms 1 3 Basic Requirements 2 3.1 Materials and Equipment 2 3.2 Construction 2 3.3 Acceptance 3 4 Construction Survey 4 4.1 General Requirements 4 4.2 General Plan Control of Plant Area 5 4.3 Plan Control of Unit Project 5 4.4 Elevation Survey Control 6 5 Base and Foundation Engineering 7 5.1 General Requirements 7 5.2 Foundation Pit Excavation and Backfilling 8 5.3 Natural Base 8 5.4 Artificial Base 9 5.5 Pile Foundation 9 6 Sewage Treatment Structure 10 6.1 General Requirements 10 6.2 Prefabricated Assembled Water Tank with Reinforced Concrete 11 6.3 Cast-in-situ Reinforced Concrete Water Tank 14 6.4 Civil Work and Equipment Installation Connection Position 15 6.5 Full Water Test in Water Tank 16 7 Sludge Treatment Structure 16 7.1 General Requirements 16 7.2 Cast-in-situ Reinforced Concrete Structure 16 7.3 Parts Connecting Digestion Tank with Equipment Installation 17 7.4 Thermal Insulation and Corrosion Protection for Digestion Tank 18 8 Pump House Engineering 19 8.1 General Requirements 19 8.2 Reinforced Concrete Structure Engineering 19 8.3 Full Water Test 19 9 Pipeline Engineering 20 9.1 General Requirements 20 9.2 Water Supply and Drainage Pipe and Process Pipeline Engineering 20 9.3 Functionality Detection 26 10 Biogas Cabinet (tank) and Pressure Vessel Engineering 27 10.1 General Requirements 27 10.2 Biogas Cabinet (tank) Installation 28 10.3 Weld Inspection of Biogas Cabinet (tank) 29 10.4 Corrosion Protection of Biogas Cabinet (tank) 29 10.5 Air-tight Test of Biogas Cabinet (Tank) and Pressure Vessels 30 11 Electromechanical Equipment Installation Engineering 30 11.1 General Requirements 30 11.2 Grid Cleaner 31 11.3 Screw Conveyor 32 11.4 Water Pump Installation 32 11.5 Installation of Sand Eliminator 34 11.6 Installation of Blowing Device 34 11.7 Installation of Stirring System Device 35 11.8 Installation of Aeration Equipment 37 11.9 Installation of the Sludge Scraper and the Sludge Sucker and Scraper 38 11.10 Decanter Installation 39 11.11 Installation of Sludge Concentration Dehydrator 40 11.12 Installation of Heat Exchanger System Equipment 41 11.13 Hoist and Gate Installation 41 11.14 Installation of Biogas Boiler, Biogas Generator and Biogas Engine 42 11.15 Installation of Switch Cabinet and Distribution Cabinet 43 11.16 Installation of Power Transformer 43 11.17 Pipeline Engineering of Electric Power Cables, Telecommunication Cables and Signal Cables 44 11.18 Installation of Other Equipment and Devices 45 12 Autocontrol and Automated Monitoring System 45 12.1 General Requirements 45 12.2 Installation and Debugging of Regulating Valve and Actuating Mechanism 46 12.3 Installation and Debugging of Signals, Interlocks and Protective Devices 47 12.4 Installation and Debugging of Regulators 48 12.5 Mimic Panel 48 12.6 Computer Control System 48 12.7 Installation of Monitoring Room Equipment 50 12.8 Instrumental Equipment Installation 51 13 Plant Auxiliary Engineering 52 Appendix A Classification of Unit, Subsection and Subitem Projects of Sewage Treatment Plant Engineering 53 Appendix B Acceptance of Each Stage of Sewage Treatment Plant Engineering 55 Explanation of Wording in this Code 57