What are the applications of modular sewage treatment equipment in the textile industry
Information summary：The modular sewage treatment equipment, with its core advantages of integration, mobility, fast deployment, small footprint, and impact resistance, has achieved full scenario application in the textile industry, from standard discharge, emergency treatment, reclaimed water reuse, centralized treatment in industrial parks to sludge reduction. It correctly matches the treatment pain points of textil
The modular sewage treatment equipment, with its core advantages of integration, mobility, fast deployment, small footprint, and impact resistance, has achieved full scenario application in the textile industry, from standard discharge, emergency treatment, reclaimed water reuse, centralized treatment in industrial parks to sludge reduction. It correctly matches the treatment pain points of textile wastewater with high COD, high chromaticity, high salinity, complex composition, and large water quality fluctuations.
1、 Core application scenarios and process adaptation
1. Standard discharge treatment of textile printing and dyeing wastewater (mainstream application)
For wastewater from different processes such as cotton spinning, synthetic fiber, and wool spinning, a customized pry loading process chain is adopted to stably meet the "Water Pollutant Discharge Standards for Textile Dyeing and Finishing Industry" (GB 4287-2012).
Typical process combination: Physical and chemical pretreatment (coagulation/air flotation/microelectrolysis)+Biochemical treatment (A/O, MBR, salt tolerant biochemistry)+Deep purification (ozone/photocatalysis)
Processing objects: desizing wastewater (PVA, starch), dyeing wastewater (active/dispersing/acidic dyes), printing wastewater, refining wastewater (surfactants, alkalis)
Core function: Efficient removal of COD, chromaticity SS、 Ammonia nitrogen, total phosphorus, salt content, solve problems such as difficult decolorization and poor impact resistance
Advantages: Factory prefabrication, 1-3 day on-site water supply, no need for large-scale civil engineering, and a land occupation reduction of more than 50% compared to traditional processes
2. Reclaimed water and resource utilization (high-value applications)
Deeply purify the treated wastewater that meets the standards and reuse it for production, achieving water conservation, emission reduction, cost reduction, and efficiency improvement.
Reuse process: standard effluent+ultrafiltration (UF)+reverse osmosis (RO)/nanofiltration (NF) integrated system
Reuse scenario
Production process: dyeing rinse water, water replenishment for washing machine, pre-treatment water
Auxiliary water: cooling tower circulating water, workshop floor flushing, plant greening, boiler water replenishment
Benefit: The reuse rate can reach 45% -62%, significantly reducing the amount of fresh water intake and sewage charges
3. Emergency management and temporary capacity expansion (flexible application)
Emergency pollution control: respond to emergency situations such as environmental inspections, sudden water quality exceeding standards, equipment failures, etc., deploy quickly, plug and play
Temporary expansion: Quickly increase processing capacity during peak order seasons and capacity increases without the need for infrastructure construction
Relocation and Reuse: Suitable for project relocation, factory renovation, leasing of factory buildings, and other scenarios. Equipment can be lifted and relocated as a whole for reuse
4. Centralized processing in textile industrial parks (scale application)
Centralized collection+quality treatment: For different enterprises and processes in the park, a modular combination of pry and install is adopted to achieve classification pretreatment, centralized biochemistry, and deep treatment of wastewater
Advantages: Unified operation and maintenance, reduced single plant investment, easy supervision, unified compliance with effluent standards or centralized reuse
5. Sludge reduction and disposal (supporting application)
Skid mounted screw dewatering machine: deals with biochemical sludge and physicochemical sludge from textile wastewater, dewatering sludge with a moisture content of over 98% to 75% -80%, reducing volume by 65% -75%, and facilitating transportation and compliant disposal
Advantages: Integration, small footprint, fully automatic operation, anti clogging, easy maintenance
2、 Technical adaptation to the characteristics of textile wastewater
1. Treatment of high chromaticity wastewater
Process: coagulation precipitation+air flotation+magnetic resin adsorption+ozone/photocatalytic oxidation
Effect: The chromaticity is reduced from 500-1200 times to below 30-40 times, and the decolorization rate is over 95%
2. Treatment of high salt wastewater
Technology: domestication of salt tolerant complex bacteria+anaerobic hydrolysis+aerobic biofilm+membrane separation
Adaptation: It can operate stably at a salinity of 10% -15% without dilution, with a COD removal rate of over 92%
3. Treatment of recalcitrant organic compounds (PVA, dye intermediates)
Process: Micro electrolysis/iron carbon filler+hydrolysis acidification+MBR+oxidation
Effect: Improve biodegradability (B/C ratio), degrade stubborn organic matter, effluent TOC<15mg/L
4. Anti impact design for large fluctuations in water quality
Configuration: Buffer regulation pool+intelligent PLC control system+DO online monitoring+automatic parameter adjustment
Ability: Able to withstand an instantaneous peak COD concentration of 2500mg/L, ensuring stable effluent
3、 The core value of modular equipment in the textile industry
Short construction period: Factory prefabrication, on-site only requires connection of water and electricity, and can be put into operation in 1-3 days, which is 2-3 months shorter than traditional civil engineering
Low investment and operation costs: no need for large-scale civil engineering, high reuse rate; High degree of automation, reducing manual labor and energy consumption by 18% -35%
Extremely small footprint: highly integrated, multi-layer stacking, saving 50% -60% of footprint, suitable for small spaces in factory areas
Strong flexibility: movable, expandable, and relocatable, suitable for enterprise capacity expansion, factory relocation, and emergency needs
Stable compliance: The process is highly targeted, resistant to impact loads, and the effluent is stable and meets national standards and reuse requirements
4、 Typical application cases
Chemical fiber dyeing and finishing plant: deals with wastewater containing 12% salt and COD 18000mg/L, using a salt tolerant biochemical+MBR+RO pry system, with effluent COD<150mg/L, saving 150000 tons of water annually
Cotton textile printing and dyeing factory: coagulation+air flotation+magnetic resin prying process, color reduction from 1200 times to 35 times, solving the problem of color in the effluent
Textile Industrial Park: Centralized dismantling station for treating mixed wastewater from multiple enterprises, with a reuse rate of 55%, achieving water conservation, emission reduction, and unified supervision in the park
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