Analysis of Inflow and Outflow Indicators of Dyeing and Finishing Wastewater System

1，PHMetrics

Pre-filter system, ultrafiltration, nanofiltration systems, operationalPHFor extreme values3-11，Normal Operating Range6-9Chemical Cleaning Scope: Acid TreatmentPHPlease provide the Chinese content to be translated.2-3No Chinese content provided for translation.PHPlease provide the Chinese content to be translated.12-13。

2，Conductivity

The pre-filtration system has no requirements for conductivity, the ultrafiltration system has no requirements for conductivity, and the nanofiltration membrane system.Operating Conductivity Range0-15000us/cm。

3，Temperature

Previous Filter System Operating Temperature Range0-45Degree, Ultrafiltration Membrane Operating Temperature5-45DegreeOperating Temperature25Approximately degrees.Nanofiltration membrane operating temperature5-45No Chinese content provided, original text returned: 度Operating Temperature25Degrees around。

4，Suspension particlesSS

Unknown ultrafiltration feed water SS Concentration Less Than 100mg/ L Quartz sand filtration per cubic meter of quartz sand Retained sludge 20kg Quartz sand tank diameter 900mm No Chinese content provided. 1.2m Quartz sand assembly Accumulation:3.14*0.45*0.45*1.2=0.76 Cubic, retained sludge 15.2kg Baghouse Trap Sludge Please provide the Chinese content to be translated. 1.4kg,Activated carbon tank retains sludge, approximately equal to quartz sand tank. 1/3Please provide the Chinese content you would like translated. 5kgSystem Pre-Filter Total

Retained sludge approximately 21.6kg。

No Chinese content provided. 7T/H Our team works diligently every day. 20 Hourly, sand pot and carbon pot are cleaned daily. Wash 1 The filter bags are changed daily. 1 Next, the daily water flow is 140 Ton. Influent suspended solids.

High concentration Xmg/ L,

Result:140*1000*（x-100）/1000000=21.6*1000Calculated results:X=254mg/ L

Upcoming:

aSuspension Concentration 254mg/ L,Operational 20 Wash hourly.

bSuspended Solids Concentration 508mg/ L Running 10 Wash hourly.

c Suspension Concentration 1016mg/ L Running 5 Wash hourly.

d，Please provide the Chinese content to be translated. 1000mg/ L It is recommended to reduce the concentration before introducing it into the system.Or increase the design of the filter tank。

COD Indicator

The COD retention rate of the nanofiltration membrane is 90%, with an effluent requirement of 20 mg/L COD, and the influent COD of the nanofiltration membrane is 200 mg/L. The COD retention rate of the ultrafiltration membrane is 60%, with an influent COD of 500 mg/L. The COD retention rate of the preliminary multi-media filtration is 15%, i.e.The system's COD (Chemical Oxygen Demand) is 588 mg/L, approximately 600 mg/L.

5，Total Hardness (Calcium and Magnesium Ions)

Previous pretreatment does not require any hardness specification. The ultrafiltration membrane feedwater hardness requirement200mg/LReverse Osmosis Membrane Inlet Water Hardness Requirement200mg/LSystem for incoming waterThe sum of hardness calcium and magnesium ions should be less than200mg/L。

6，Total Dissolved Solids Content

The preliminary pretreatment does not require a specific solubility solid content, while ultrafiltration is suitable for solubility solid content less than18000mg/LThe higher the solubility solid content, the lower the ultrafiltration flux.Please provide the Chinese content that needs to be translated.2860Ultrafiltration membranes, for example, the solubility of solids in2000PPMPost-membrane pressure0.5Kilograms, with a throughput of approximately2T/HEach membrane,3Membrane flux is approximately6T/HNSF membranes for dissolved solids content less than10000PPMThe higher the solubility solid content, the lower the flux.Please provide the Chinese content to be translated.DK8040For example, dissolved solids in the film.2000ppmPost-membrane pressure10Kilograms, with a throughput of approximately1T/HEach membrane,3The membrane flux is approximately3T/H。

7，Total Organic Carbon (TOC)TOC）

The complex composition of organic matter affects the influent of nanofiltration membranes.TODNo Chinese content provided.5mg/LUltrafiltration membranes achieve an organic carbon removal rate of95%Ultrafiltration membrane feed waterTOCPlease provide the Chinese content to be translated.100mg/LPre-treatment with activated carbon filtrationTOCRemove approximately50%There is no Chinese content provided to translate. Please provide the Chinese text for translation.Organic carbon intake requirements200mg/L。

8，Turbidity

Turbidity and suspended solids are somewhat related; the incoming turbidity of the reverse osmosis membrane is less than...5NTUUltrafiltration membrane feed water turbidity less than50NTUPre-treatment for turbidity removal,50%Left and right, that is the system.Ingress Water Turbidity Should Be100NTUThe following。

9，Bacteria

Ultrafiltration membranes' bacterial retention rate exceeds99.9%Maintain bacterial count5000CFU/MLThe following.

10，Other

Iron ion levels below2mg/L，

Chloride ion levels below500mg/L，

Total Nitrogen <100mg/L（The main ultrafiltration and nanofiltration removal rates for nitrogen are only30%There is no Chinese content provided for translation.70mg/LIf water recycling is implemented, there are no requirements for total nitrogen, and this indicator has little impact on the system's operation.），

Ammonia nitrogen less than200mg/L（Removal rate of ammonia nitrogen in the system95%If the emission standards are10mg/LAmmunia nitrogen should be less than200mg/LIf reused, there are no requirements for ammonia nitrogen; this indicator has little impact on the system's operation.）。

BODLess than300mg/L。