CJJ 32-1989 Design specification for water treatment containing bath water
Some standard content:
Industry Standard of the People's Republic of China
Design Specification for Water Supply and Treatment Containing Algae
CJJ 32--89
Editing Unit: China Municipal Engineering Central South Design InstituteApproving Department: Ministry of Construction of the People's Republic of ChinaImplementation Date: January 1, 1990
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Notice on the Issuance of the Industry Standard
"Design Specification for Water Supply and Treatment Containing Algae"Construction Committees (Construction Departments) of all provinces and autonomous regions, Construction Committees (Municipal Engineering Bureaus) of all municipalities directly under the Central Government and cities with independent planning status, and Northeast, North China, Northwest and Southwest China Municipal Engineering Design Institutes:
In accordance with the requirements of the former Ministry of Urban and Rural Construction and Environmental Protection's (86) Chengke No. 263 document, the "Design Specification for Water Supply and Treatment Containing Algae", edited by China Municipal Engineering Central South Design Institute, has been reviewed and approved as an industry standard with the number CJ32-89, and will be implemented from January 1, 1990. If you have any questions or comments during the implementation process, please inform China Municipal Engineering Central South Design Institute.
Ministry of Construction of the People's Republic of China
September 20, 1989
Chapter 1
Chapter 2
Chapter 3
Section 1
Section 2
Section 3
Choice of Water Intake Location
Water Treatment Structures
General Provisions
Sedimentation Tanks and Clarifiers
Floatation Tanks
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Section 4
Chapter 4
Appendix—
Appendix 2
Detection and counting of algae
Explanation of terms used in this specification
Additional instructions
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List of the editorial unit and main
drafting persons of this specification
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Chapter 1 General
Article 1.0.1 In order to improve the design level of water supply treatment containing cystic water, promote the development of water supply treatment technology containing algae, and make the treated water quality meet the requirements of the current national standard "Sanitary Standard for Drinking Water", this specification is specially formulated. Article 1.0.2 This specification is applicable to the design of water treatment using lake or reservoir water containing algae as water. Other similar water treatment designs containing algae can also be implemented as a reference.
Article 1.0.3 The definition of water containing algae is water source water with a content of more than 1 million algae/L or a content sufficient to hinder the normal operation of the conventional water treatment process consisting of coagulation, sedimentation and filtration, or sufficient to reduce the quality of the water leaving the factory. Note: The drug change adopts the self-sugar unit counting method. The counting unit is 1. The effective unit for any single cell species, or natural population of polysaccharides (such as 4-celled slow-residue toxins) is 1 (i.e. 1 organism). Article 1.0.4 Article 1. When selecting a water source, in addition to investigating the degree of nutrient accumulation and water quality of the water source, a prediction should be made on the future changes in the water quality of the water source. Within the design life of the project, the water quality of the water source after achieving sanitary protection shall not be lower than the Class I surface water quality standard in GB3838-88 "Surface Water Environmental Quality Standard". Article 1.0.5 In addition to implementing this specification, the design of water supply treatment for algae-containing water shall also comply with the provisions of C+BJ13--86 <Xuanwai Water Supply Design Specification>. Article 2. Selection of water intake location
Article 2.0.1 The water intake shall be located at a location with low algae content, large water depth and open water area. The water intake shall not be located in the "Yonghua" area, and generally should not be located in the lower four-test area of the dominant wind direction of the high-algae event. Article 2.0.2 When the water depth of the tidal pond or reservoir is greater than 10m, stratified water intake shall be adopted according to the law of vertical distribution of seasonal water quality along the water depth. Article 2.0.3 The height of the lower edge of the water inlet from the tidal and reservoir should be determined based on the composition of the bottom mud, sediment deposition and changes, and the bottom water concentration, but shall not be less than 1m.
Article 2.0.4 The submergence depth above the water intake at the lowest water level should be determined based on the content of oxygen in the upper water, floating organisms and ice thickness, but shall not be less than 1m. Chapter 1 Water Treatment Structures
Section 1
General Provisions
Article 3.1.1 After tidal and water treatment, the turbidity of water entering the filter tank after flocculation, sedimentation or clarification treatment should be less than 7 degrees. Article 3.1.2 The water quality of the factory water should comply with the provisions of GB5749--85 "Sanitary Standard for Drinking Water". And the oxygen consumption (potassium peroxide method) should not be more than 4m3/L. 3.1.3 The selection of the process flow and the combination of structures for treating β-containing water should be determined based on the results of experimental research or the experience of water plant operation under similar conditions, and after technical and economic comparison. The treatment process flow is generally as follows. 1. Conventional treatment process flow is: raw water - mixing → flocculation → sedimentation (clarification) → desorption → desorption 2. For raw water from eutrophic lakes and reservoirs, whose turbidity is less than 100% all year round, the treatment process flow can be: dosing
raw water - slurry → flocculation and flotation - desorption - lubrication - nutrient treatment
3. For raw water from poor-nutrient lakes and reservoirs, whose turbidity is less than 100% all year round, the treatment process flow can be: dosing
raw water - slurry → flocculation and flotation - desorption - nutrient treatment
For raw water with a maximum turbidity of less than 20 degrees, the treatment process can also be adopted, 5-17-4
Raw water → mixing → flocculation → direct filtration → disinfection Section 2 Oil Sedimentation and Coagulation Tanks
Section 3.2.1 The surface load of the horizontal flow sedimentation tank should be 1.0 ~1. 5m*/mh, the horizontal flow rate should be 5~8mm/s, and the sedimentation time should be 2~4h. When the selectivity of the raw water is low, the sedimentation time should be higher. Section 3.2.2 The surface load of the horizontal flow inclined tube sedimentation tank should not be greater than 7. 2m*/m*.h.
Section 3.2.8 The rising velocity of the clear water area of the drainage tank should not be greater than 0.7 mm/s. Section 3 Flotation Tanks
Section 3,3. 1 The surface load of the flotation tank should generally be less than 7.2m*/mh. Article 3.3.2 The dissolved air should be kept close to the flotation tank, and the dissolved air pressure is generally 100~400kPa. Article 3.8.8 The condensation time before the flotation tank is generally 10~
The stop time of the flotation tank is preferably 10~
The effective water depth of the flotation tank is preferably 10~, and the flow rate of the water distribution orifice at the outlet of the flocculation tank should be 0.1~0.15m/e. Article 3.8.7 Mud discharge facilities should be set at the bottom of the flotation tank. Article 3.8 The relevant provisions of the Ministry of Industry and Information Technology should be followed.
The treatment method of the flotation tank should comply with the local environmental protection department. Section 4
When the filter tank and the flotation tank are combined, quartz sand filter media should be used. Article 3.4.1
Article 3.4.2
The filtration adjustment period of the stabilization tank should generally not be less than 12h. Article 3.4.3 The filtration rate and filter media composition of the element filter tank can be selected according to the needs according to Table 3.4.3. When the direct passage is used. The filtration rate should be selected at the lower limit. The flushing intensity and flushing time of the water washing stabilization ritual should be adopted according to the decline. Article 3.8.4.4
Article 8.4.5
When there are technical and economic dependencies, the male pool can use surface flushing. Air-water flushing is suitable for quartz sand ice material irrigation. The filter material composition of the rolling pool is
quartz sand channel
inhibiting glucose
double nest male material diagnosis
three-column channel
uneven hook coefficient thickness
d= - 0. 6
de*+-1. ?
anthracite
quartz sand
non-explosive coal
quartz sand
. - 0.
heavy ammonia ore
dmtn - 0. 25
less than,
less than 2,.
less than 1.5
less than 1.?
Table 3.4.3
Relict system speed
8 ~ 12
12 ~14
properties, D relative density of feed, inexhaustible coal 1.4~1.B quartz sec 2.6~2.65: heavy ore 4.~5. 0. The more you study and report the filter, the different treatment of the water quality of the extremely smoke Zhang front water
The flushing intensity and flushing time of the water washing mixing tank (when the water is 20°C) are required 3.4.4
flushing (selector, leather
quartz seed health material ball
double layer secretion material saturation
three mouse filter material soul
16 ~ 18
(pancreas, *
Chapter 4 Disinfection
When adding liquid oxygen to the water containing health protection, it must be controlled out of Article 4.0.1
The concentration of chloroform and phosphorus tetrafluoride in the plant water and the pipe network water should meet the requirements of GB5749--85 postnatal drinking water hygiene standard>. www.bzxz.net
Article 4.0.2 When using nitrogen amines for disinfection, nitrogen should be added first and then chlorine. When the ammonia content in the water can form enough fluorine amines, ammonia is generally no longer added. Appendix—
Detection and counting of algae
Shake the algae-containing water sample and pour it into a 1000mL cylindrical sedimentation tube, then add 15mL of Lugals solution and shake it to fix it. After static flow for 24 hours, use a siphon to carefully suck out the upper clear liquid, and remove the remaining 20~25mL of concentrated liquid from the tube and transfer it to a 30mL quantitative specimen bottle. After heating, use a small amount of the above-absorbed supernatant to rinse the sedimentation tube three times respectively, and transfer the rinse liquid each time to the above-mentioned 30mL quantitative specimen bottle.
Before counting, pay attention to the actual volume of the sample in the quantitative bottle. If it is less than 30mL, add distilled water to 30mL. mL. If it exceeds 30 mL, use a pipette to carefully suck out the excess liquid, then move it horizontally 200 times left and right, and immediately use a 0.1 mL pipette to accurately suck out 0.1 mL of the sample from the middle of the specimen, and inject it into a counting frame with a volume of 0.1 mL. Carefully cover it with a cover slip. When covering it with a cover slip, it is required that there are no bubbles in the counting frame and the sample does not overflow the counting frame. Then count it under a 10×40 or 8×40 microscope. The distribution in the frame should pay attention to both uniformity and randomness. If the difference between the counting results of two pieces of the same specimen and its mean is not greater than 15% of its mean, the mean of these two similar values can be regarded as the counting result. Calculation formula. 1 The number of phytoplankton in the water =
Where Cm—Counting frame area (mm*)
-Area of each locust field (mm*)
-Number of counted fields per piece!
Number of phytoplankton actually counted per piece. P.
Appendix II Explanation of terms used in this specification
1. To facilitate the implementation of the provisions of this specification, the terms used to indicate the degree of strictness are explained as follows:
1. Words that indicate that it is very strict and must be done in this way are used as positive words.
Negative words are used as "must".
2. Words that indicate that it is strict and should be done in normal circumstances are used as positive words.
Negative words are used as "should" or "must not". 3. To indicate that a slight choice is allowed and that the first thing to do is to do it when conditions permit, the positive words are "should" and "may", and the negative words are "should not".
2. The writing method for specifying that other relevant standards and specifications should be implemented in the article is: "should be implemented in accordance with" or "should meet the requirements (regulations)". Additional notes:
List of the editorial unit and main drafters of this specification Editor: China Municipal Engineering and Design Institute Central South Main drafter, Li Jiajiu
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