The reuse of urban recycling water of farmland irrigation water

The synopsis of project
The ERUN series reuse of urban recycling water of farmland irrigation water developed and produced by Erun Group is a solution designed based on the "GB 20922-2007". The water quality analyzer of recycling regenerated and reused agricultural can mainly be used to detect BOD5, CODCr, SS, DO, pH, TDS, chlorine ions, sulfide, residual chlorine, oil, volatile phenols, anionic surfactants, mercury, cadmium, arsenic, hexavalent chrome, lead, thermotolerant coliforms, aerobic bacterial count, etc. The water quality testing instrument of urban sewage reuse farmland irrigation is suitable for testing the water quality of farmland irrigation water that has been regenerated and treated from domestic sewage, industrial sewage, agricultural sewage, etc., using the effluent from urban sewage treatment plants as the water source.
The contents of project

1、Basic control items and maximum limit values of water quality items for urban sewage recycling and agricultural irrigation water use:

Serial No. Basic control itemsIrrigation crop types
Fiber crops

Upland crop


Oil crops

Paddy cropsOpen field vegetables
1BOD5100806040
2CODCr200180150100
3SS
100908060
4DO ≥0.5
5

pH(non-dimensional

5.5 ~ 8.5
6TDS1000 in non saline alkali land areas and 2000 in saline alkali land areas1000
7chlorine ions350
8sulfide1.0
9residual chlorine1.51.0
10oil105.01.0
11volatile phenols1.0
12anionic surfactants8.05.0
13mercury0.001
14cadmium0.01
15arsenic0.10.05
16hexavalent chrome0.1
17lead0.2
18thermotolerant coliforms/(pcs/L)4000020000
19
aerobic bacterial count/(pcs/L)2

Note: The unit is milligrams per liter.


2、Technical parameters of the reuse of urban recycling water of farmland irrigation water:

Serial No.

Items

Measuring range

Unit

Maximum deviation

Analysis methods

Standard basis

1

BOD5

0-4000

mg/L

±8%

Dilution and seeding method

HJ 505

2

CODCr

5-2000

mg/L

5%

Dichromate method

HJ 828

3

SS

5-1000

mg/L

≤2%(F.S.)

Light scattering method

——

4

DO

0-20.0

mg/L

±0.2

Electrochemical probe method

GB/T 11913

5

pH

0.00-14.00

——

±0.1

Glass electrode method

GB/T 6920

6

TDS

0.0mg/L~199.9g/L

g/L

±0.5% (F.S.)

Solid to solid ratio method

GB/T 14415

7

chlorine ions

0.20-100.0

mg/L

5%(F.S.)

Silver nitrate titration method

GB/T 11896

8

sulfide

0.005-1.000

mg/L

5%(F.S.)

Methylene blue spectrophotometric method

GB/T 16489

9

residual chlorine

0.02-10.00

mg/L

0.1 or 5%

Spectrophotometric method using N,N-diethyl-1,4-phenylenediamine

GB/T 11898

10

oil

0.00~900.00

mg/L

RSD<0.6%

Infrared photometric method

GB/T 16488

11

volatile phenols

0.20-10.0

mg/L

5%(F.S.)

After distillation by means of 4-AAP spectrophotometric method

GB/T 7490

12

anionic surfactants

0.01-1.0

mg/L

5%(F.S.)

Methylene blue spectrophotometric method

GB/T 7494

13

mercury

0.002-0.50

mg/L

5%(F.S.)

Cold atomic absorption spectrophotometry

GB/T 7468

14

cadmium

0.05-0.50

mg/L

5%(F.S.)

Spectrophotometric method with dithizonc

GB 7471

15

arsenic

0.004-0.500

mg/L

5%(F.S.)

Atomic fluorescence spectrometry

HJ 694

16

hexavalent chrome

0.01-1.00

mg/L

5%(F.S.)

1,5 Dtphenylcarbohydrazide spectrophotometric method

GB 7467

17

lead

0.01-0.50

mg/L

5%(F.S.)

Atomic absorption spectrometry

GB 7475

18

thermotolerant coliforms

——

MPN/L

——

Manifold zymotechnics

HJ 347.2

19

aerobic bacterial count

——

pcs/L

——

Determination nature sedimentation method

HJ 775


3、Products list of the reuse of urban recycling water of farmland irrigation water:

序号

产品型号

产品名称

项目参数

产品图片

1

ERUN-ST-MU97

Laboratory benchtop multi-parameter water quality analyzer

CODCr, SS, DO, pH, TDS, chlorine ions, sulfide, residual chlorine, volatile phenols, anionic surfactants, mercury, cadmium, arsenic, hexavalent chrome, lead

Laboratory benchtop multi-parameter water quality analyzer of urban sewage recycling and irrigation water for farmland


2

ERUN-BY-2A

Intelligent water quality BOD5 testing instrument

BOD5

Intelligent water quality BOD5 testing instrument of urban sewage recycling and irrigation water for farmland

3

ERUN-ST-OD380

Laboratory benchtop infrared spectrophotometer

oil

Laboratory benchtop infrared spectrophotometer of urban sewage recycling and irrigation water for farmland

4

ERUN-SP-MD690

Portable water quality microbiological tester

thermotolerant coliforms, aerobic bacterial count

Portable water quality microbiological tester of urban sewage recycling and irrigation water for farmland

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


4、The part list of the reuse of urban recycling water of farmland irrigation water:

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

1

5

Cuvette

50×25×70mm

2

6

Lens hood

Black

1

7

CODCr reagent

250 times/set

1

8

Chlorine ions reagent50 times/set

1

9

Sulfide reagent50 times/set

1

10

Residual chlorine reagent100 times/set

1

11

Volatile phenols reagent100 times/set

1

12

Anionic surfactants reagent20 times/set

1

13

Mercury reagent50 times/set

1

14

Cadmium reagent50 times/set

1

15Arsenic reagent50 times/set

1

16

Hexavalent chrome reagent100 times/set

1

17

Lead reagent50 times/set

1

18Multi functional CNC digestion instrumentERUN-DIG-1D1
19Biochemical incubatorERUN-SHX1001
20Temperature electrode/1
21DO composite electrode/1
22PH composite electrode/1
23Conductivity(TDS)electrode/1
24Chargers and charging cables/1
25USB cable/1
26Instruction manual/1
27

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