Laboratory water quality testing instruments, vessels, and accessories for sewage treatment plants

The synopsis of project
The ERUN series laboratory water quality testing instruments, vessels, and accessories for sewage treatment plants developed and produced by Erun Group are designed specifically for daily analysis and testing of water quality in sewage treatment plants (stations). The wastewater treatment plant water quality laboratory equipment include basic control items such as COD, BOD5, SS, oil, anionic surfactant, total nitrogen, ammonia nitrogen, total phosphorus, chromaticity, pH, and fecal coligroup count. The laboratory testing instruments for wastewater treatment plants not only include benchtop and portable water quality testing instrument hosts, but also include digestion instruments, colorimetric tubes, incubators, reagents, pipettes, volumetric flasks and other vessel accessories.
The contents of project

1、Standard grading of laboratory water quality testing instruments, vessels, and accessories for sewage treatment plants:

According to the environmental functions and protection objectives of the wastewater treatment plant discharged into surface water bodies, as well as the treatment process of the wastewater treatment plant, the standard values of conventional pollutants for basic control projects are divided into first level standards, second level standards, and third level standards. The first level standards are divided into A standards and B standards. Some types of pollutants and selected control items are not classified.

1、The A standard of the first level standard is the basic requirement for wastewater treatment plant effluent to be used as recycled water. When the effluent from the sewage treatment plant is introduced into rivers and lakes with low dilution capacity for purposes such as landscape water and general reuse, the A standard of the first level standard shall be implemented。

2、When the effluent from the sewage treatment plant is discharged into GB3838 surface water Class III functional water areas (excluding designated drinking water source protection areas and swimming areas), GB 3097 seawater Class II functional water areas, and enclosed or semi enclosed water areas such as lakes and reservoirs, the Class B standard of the first level standard shall be implemented.

3、The effluent from the sewage treatment plant is discharged into GB3838 surface water Class IV and V functional waters or GB3097 seawater Class III and IV functional waters, in accordance with the second level standard.

4、For sewage treatment plants in non key controlled watersheds and non water source protection areas, according to local economic conditions and water pollution control requirements, when adopting the first level enhanced treatment process, the third level standard shall be implemented. But it is necessary to reserve space for secondary processing facilities and achieve secondary standards in stages.


2、Maximum allowable emission concentration value (daily average) for basic control items:


Serial No.

Basic control items

Primary standard

Secondary standard

Level 3 standard

A standard

B standard

1

chemical oxygen demand(COD)

5060100120

2

biochemical oxygen demand(BOD5

10

20

30

60

3

suspended solids(SS)

10

20

30

50

4

animal and vegetable oils

1

3

5

20

5

petroleum

1

3

5

15

6

anionic surfactant

0.5

1

2

5

7

total nitrogen (calculated as N)

15

20

——

——

8

ammonia nitrogen(calculated as N

5(8)

8(15)

25(30)

——

9

total phosphoruscalculated as P

0.5

1

3

5

10

chromaticity (dilution factor)

30

30

40

50

11

pH

6~9

12

fecal coligroup count(units/L)

103

104

104

——

Note

a、When the influent COD is greater than 350mg/L, the removal rate should be greater than 60%; When the BOD is greater than 160mg/L, the removal rate should be greater than 50%.

b、The values outside the parentheses of the ammonia nitrogen project are the control indicators for water temperature>12 ℃, and the values inside the parentheses are the control indicators for water temperature ≤ 12 ℃.


3、Technical Parameters of laboratory water quality testing instruments, vessels, and accessories for sewage treatment plants:


Serial No.

Items

Measuring range

Unit

Maximum deviation

Analysis methods

Standard basis

1

chemical oxygen demand(COD)

5-2000

mg/L

5%

dichromate method

GB 11914

2

biochemical oxygen demandBOD5

0-4000

mg/L

±8%

dilution and seeding method

GB 7488

3

suspended solids(SS)

5-1000

mg/L

<2%F.S.

light scattering method

——

4

animal and vegetable oils

0-900

mg/L

RSD<0.6%

infrared photometric method

GB/T 16488

5

petroleum

0-900

mg/L

RSD<0.6%

infrared photometric method

GB/T 16488

6

anionic surfactant

0.01-1.0

mg/L

5%(F.S.)

methylene blue spectrophotometric method

GB 7494

7

total nitrogen (calculated as N)

0.10-150

mg/L

5%(F.S.)

alkaline potassium persulfate digestion-UV spectrophotometric method

GB 11894

8

ammonia nitrogencalculated as N

0.02-25.00

mg/L

3%(F.S.)

nessler's reagent colorimetric method

GB 7479

9

total phosphoruscalculated as P

0.02-10.00

mg/L

5%(F.S.)

ammonium molybdate spectrophotometric method

GB 11893

10

chromaticity (dilution factor)

5-500

PCU

3%(F.S.)

dilution times method 

GB 11903

11

pH

0.00-14.00

——

±0.01

atomic absorption spectrophotometry

GB 7475

12

fecal coligroup count(units/L)

——

个/L

——

manifold zymotechnics

HJ 347.2


4、List of laboratory water quality testing instruments, vessels, and accessories for sewage treatment plants:

Serial No.

Part Number

Name

Items

Pictures

1

ERUN-SP-M9000

Portable multi-parameter water quality tester

chemical oxygen demand(COD)suspended solids(SS)anionic surfactanttotal nitrogen (calculated as N)ammonia nitrogencalculated as Ntotal phosphoruscalculated as Pchromaticity (dilution factor)、pH

Portable multi-parameter water quality tester for sewage treatment plant


2

ERUN-ST-OD380

Laboratory benchtop infrared spectrophotometer

animal and vegetable oilspetroleum

Laboratory benchtop infrared spectrophotometer for sewage treatment plant


3

ERUN-BY-2A

Intelligent BOD5 water quality analyzer

biochemical oxygen demandBOD5

Intelligent BOD5 water quality analyzer for sewage treatment plant

4

ERUN-SP-MD690

Portable water quality microbiological tester

fecal coligroup count(units/L)

Portable water quality microbiological tester for sewage treatment plant

Note: Analysis parameter items can be flexibly combined and selected according to the customer's own needs.


5、Other parts List of laboratory water quality testing instruments, vessels, and accessories for sewage treatment plants:

Serial No.

Name

Specifications

Quantity

1

Colorimetric tube

Ф25×95mm

10

2

Colorimetric tube

Ф16×110mm

10

3

Test tube rack

White

2

4

Pipette gun

Minimum graduation 0.1mL

2

5

Cuvette

70×25×70mm

2

6

Lens hood

Black

1

7

chemical oxygen demand reagent

200 times/set

1

8

ammonia nitrogen reagent
200 times/set

1

9

total phosphorus reagent100 times/set

1

10

total nitrogen reagent50 times/set

1

11

anionic surfactant reagent20 times/set

1

12

benchtop multifunctional CNC digestion instrument

ERUN-DIG-16B

1

13biochemical incubatorERUN-SHX1001
14temperature electrode/1
15pH composite electrode/1
16chargers and charging cables/1
17USB cable/1
18instruction Manual/1
19

product certificate

/product warranty card

/1

Note: Analysis parameter items can be flexibly combined and selected according to the customer's own needs.

Application Products
Classic Case
+8602985515255
yrhb@erunwas.com