HJ 2528-2012Technical requirement for environmental protection products. Hollow fiber membrane bio-reactor unit (English PDF)

Foreword

To implement the "People's Republic of China Water Pollution Prevention Law" to regulate the hollow fiber membrane bioreactor set design and production, improve hollow fiber Dimensional membrane bioreactor group is quality, the development of this standard.

This standard specifies the definition of the group bioreactor hollow fiber membranes, classification and naming, technical requirements, test methods, inspection rules and standard Chi, packaging, transportation and storage requirements.

This standard is the first release.

This standard by the People's Republic of China Ministry of Environmental Protection Science, Technology organizations to develop.

This standard drafting units. China Environmental Protection Industry Association, Beijing Water Technology Co., Ltd., Chinese Academy of Sciences Ecological Environment Research center.

This standard is approved by the Ministry of Environmental Protection July 31, 2012.

This standard since November 1, 2012 implementation.

The standard explanation by the Ministry of Environmental Protection.

Environmental protection product hollow fiber membrane bioreactor control group

1 Scope

This standard specifies the definition of the group bioreactor hollow fiber membranes, classification and naming, technical requirements, test methods, inspection rules and Logo, packaging, transportation and storage.

This standard applies to submerged membrane bioreactor treatment process sewage and industrial wastewater treatment biodegradability.

2 Normative references

The standard content of the following documents cited in the articles. For undated references, the effective version applies to this standard.

GB/T 191 Packaging - Pictorial signs GB/T 700 carbon structural steel Size GB/T 709 hot rolled steel sheet and strip, shape, weight and tolerance GB/T 985.1 gas welding, arc welding, gas welding and beam welding Recommended groove GB/T 1804 General tolerances Tolerances for linear and angular dimensions without individual tolerance GB/T 3280 stainless steel cold-rolled steel sheet and strip GB/T 4237 hot-rolled stainless steel sheet and strip GB/T 5750.12 drinking water standard test methods of microbiological criteria GB/T 5836.1 drainage construction with a hard polyvinyl chloride (PVC-U) pipes GB/T 5836.2 drainage construction with a hard polyvinyl chloride (PVC-U) pipe fittings GB/T 8923 steel surface before painting Rust grades and grade GB/T 9969.1 General Industrial Product Manual GB/T 10002.1 water with a hard polyvinyl chloride (PVC-U) pipes Determination of GB/T 11901 Quality of suspended solids - Gravimetric method GB/T 12771 fluid transport stainless steel welded pipe Determination of GB/T 13200 Water turbidity GB/T 13306 signs GB/T 13922.1 water treatment equipment General Performance Test GB/T 14436 General industrial products assurance documents GB/T 19866 general principles of welding procedures and assessment GB/T 20103 membrane separation technology terms GB/T 20207.1 acrylonitrile - butadiene - styrene (ABS) pressure piping systems - Part 1. Pipes GB/T 20207.2 acrylonitrile - butadiene - styrene (ABS) pressure piping systems - Part 1. Fittings GB/T 50235 Industrial metal pipe construction and acceptance JB/T 2932 water treatment equipment and technical conditions

3 Terms and Definitions

The following terms and definitions apply to this standard.

4 Classification and Nomenclature

5 Basic requirements

6 Performance requirements

7 Test methods

7.1 Appearance quality by visual.

7.2 dimensions of the parts and the whole with the corresponding levels of precision gage measurements.

7.3 Weld inspection Weld inspection using a tape measure and color detection.

7.4 tightness test catchment device using the apparatus into the water, which leads to the oil-free compressed air, maintained at 100kPa pressure three minutes into the apparatus, Observe whether the bubbles, it is determined whether or not the leak.

7.5 hollow fiber membrane element according to the film supplier technical requirements and operating instructions for testing and evaluation.

Machine performance test 7.6 membrane group apparatus according to GB/T 13922.1, and should continuously running at design operating conditions conducted after 2h (superscript Standard Test Method).

a) water turbidity by GB/T 13200 method of measurement;

b) effluent suspended solids concentration measured by the GB/T 11901 method;

c) water fecal coliform press GB/T 5750.12 Method of detection;

d) flux. unit time measured under conditions designed to run out of water and divided by the area of the membrane filtration unit is m3/(m2 · d).

7.7 membrane element life in accordance with Appendix A and by running for more than three consecutive years to assess and determine the actual project.

7.8 Composition and manufacturing membrane group using check design drawings and technical documents or certificates corresponding raw materials.

8 Inspection Rules

9 Turbidity 6.1.1 7.6 a) - sqrt

10 Effluent suspended solids concentration 6.1.2 7.6 b) - sqrt

11 Water fecal coliform 6.1.3 7.6 c) - sqrt

12 Flux 6.1.4 7.6 d) - sqrt

13 Life 6.2 7.7 - sqrt

8.3 Type inspection

8.3.1 When one of the following conditions, type of inspection should be carried out.

Shape identification a) the new product;

B) after the official production, when the design, process, materials are major changes that may affect product performance;

c) Normal production, inspection once every three years;

d) continuous discontinued after one year, the recovery in manufacturing;

e) Quality Supervision, Inspection bodies type inspection requirements.

8.3.2 Sampling. extracting factory inspection device 2 as a sample type inspection, sampling base of not less than 10; also available through Final acceptance of the equipment for two as sample type test.

8.3.3 type test items shown in Table 1.

8.4 determine the rules

8.4.1 Product testing with the standard requirements, judged to be acceptable.

8.4.2 If the sample checks have failed items, should be doubled sampling, the project failed the retest, if the re-examination results for all qualified, you can still Determine whether the product is qualified.

8.4.3 If the product re-examination, any one still a failure occurs, it is determined that the product failed.

9 signs, packaging, transportation and storage 9.1 mark 9.1.1 should be set up signs in film products group was part of the identification containing the following.

a) the product name;

b) Model;

c) the manufacturer;

d) the date of manufacture;

e) serial number.

9.1.2 Type and size of the signs should be consistent with GB/T 13306 provisions.

9.2 Packaging transport 9.2.1 shall be suitable for land and sea transport requirements, parts should be fixed firmly in the box. Random files to be packaged in plastic bags, and fixed in the box, random file should include.

a) the packing list;

b) certificate;

c) instructions for use.

9.2.2 certificate shall be prepared in line with GB/T 14436 regulations, manual preparation shall comply with GB/T 9969.1 of.

9.2.3 before packing, membrane components and other wearing parts should be protected.

9.2.4 equipment factory packaging, all fittings, nozzles, flange should be fully sealed.

9.2.5 outside the box storage flag shall comply with GB/T 191's.

9.3 Storage

9.3.1 membrane group containing membrane element should avoid direct sunlight and stored at between 4 ~ 40 °C, when the temperature is below 4 °C, the membrane element must be taken Take freezing measures, long-term when not in use, the membrane element and the film should be stored separately from other components of the group.

9.3.2 Storage hollow fiber membrane element should be carried out with reference to the technical requirements of the membrane suppliers.

Appendix A (informative) membrane wire aging evaluation methods

A.1 Method

The film yarn soaked in the agent specified predetermined time, the test membrane strands tensile strength, water flux.

A.1.1 provisions of Pharmacy Sodium hypochlorite solution at a concentration of 5 per mille, 1%, 5%.

A.1.2 soaking time

The film is accelerated liquid immersion test, inspect when the liquid load (concentration * time) is greater than the standard washing conditions 5 years or 10 years, Film aging state.

Standard cleaning conditions. after every 7-day online washed once, solution concentration 0.3 per mille; after every 30 days online washed once, liquid concentration 5 per mille.

Acceleration soak load is greater than standard cleaning load (1.2 times), as long as the accelerated aging test are not found, then the film may have a 3-year, 5 years, or More than 10 years of life.

Table A. yam life when Scale

Item 3 years 5 years equivalent of 10 years 5 per mille Acceleration soaking time (day) 6 10 20 Acceleration 1% soaking time (day) 3 5 10 Acceleration 5% soaking time (day) 0.6 1 2 Accelerating immersion liquid load (mg/L · hr) 720,000 1,200,000 2,400,000 Standard cleaning liquid load (mg/L · hr) 602,464.2 1,004,107 2,008,214 Acceleration soak load/standard wash load 1.2 1.2 1.2 A.1.3 criteria Tensile strength is reduced by 40%, or reduced to 3N or less;

Shimizu flux units TMP under growing or attenuation of more than 30%.