Skip to content
  • Stainless Steel Sheet & Plate
  • Stainless Steel Coil
  • Stainless Steel Strip
  • Stainless Steel Welded Pipe
  • Stainless Steel Seamless Pipe
  • Stainless Steel Bar
  • Stainless Steel Wire
  • Yuanjiabao, Wuqing District, Tianjin China 0086022-29493622 Welcome to visit us!
  • 0086022-29493622
  • [email protected]
Mail
Whatsapp
Phone
Menu
  • About Us
  • Products
      画板 48

      Stainless Steel Sheet

      画板 58

      Stainless Steel Plate

      画板 49

      Stainless Steel Coil

      画板 59

      Stainless Steel Strip

      画板 29

      Stainless Steel Pipe

      画板 41

      Stainless Steel  Bar & Wire

  • Grade

      MARTENSITIC

      》416

      》420

      》431

      画板 59

      FERRITIC

      》409

      》434

      》441

        》410L

        》430F

      AUSTENITIC

      》201          》316

      》301          》303

      》309          》321

      》304          》304L          

      》316L        》316Ti    

      》330          》904L

      画板 50

      DUPLEX

      》2205

      》2507

      画板 45

      PRECIPITATION HARDENING

      》631

  • Projects
  • Contact

New process for cold rolling sludge treatment of stainless steel

get quotation
Stainless Steel Futures Prices Remain Volatile And Weak
Stainless Steel Futures Prices Remain Volatile And Weak
Common Treatment Processes for Stainless Steel Surfaces
image
Common Treatment Processes for Stainless Steel Surfaces
Thermal spraying and electroplating to improve wear resistance of stainless steel
u=3005314241,1449464122&fm=253&fmt=auto&app=138&f=JPEG
Thermal spraying and electroplating to improve wear resistance of stainless steel
Electrical line protection stainless steel hose
src=http___img.mcooks.com_file_newupload_202106_22_111828115563.jpg&refer=http___img.mcooks
Electrical line protection stainless steel hose
High nitrogen stainless steel powder was prepared by atmospheric pressure melting and nitrogen atomization
stainless steel application jlinstainless24
High nitrogen stainless steel powder was prepared by atmospheric pressure melting and nitrogen atomization
Improvement of surface technology of 310S heat resistant stainless steel continuous casting slab
stainless bar
Improvement of surface technology of 310S heat resistant stainless steel continuous casting slab
Loading...

Stainless steel cold rolled products surface treatment involves blasting, high temperature alkali leaching, molten salt electrolysis, mixed acid pickling, multistage rinsing combination process, such as multiplex emissions from wastewater including neutral salt, mixed acid wastewater, containing fluorine wastewater, rinse wastewater and flushing water, etc., has a complicated composition, high yield, high acidity and strong toxicity and harm is serious, It has become a difficult point of environmental protection treatment for stainless steel enterprises.

Due to the consideration of mature technology, convenient operation and maintenance, stainless steel enterprises at home and abroad mainly divided multi-channel wastewater into two types: neutral salt wastewater containing Cr6+ and mixed acid wastewater containing other heavy metals. After chemical reduction, most of the neutral salt wastewater is converted into Cr3+ and discharged into the acid-mixing wastewater regulation tank, followed by neutralization precipitation, sludge concentration and plate and frame pressure filtration, and finally the red brown mud cake is obtained.

The practice shows that the quality, quantity and variation trend of cold rolling acid wastewater directly determine the control difficulty of the treatment process, the dosage cost and the output of mixed sludge. In the actual treatment of waste water stations in various enterprises, in order to ensure that the effluent reaches the standard, lime milk is often overadded, resulting in a large number of mud cakes at the end of the process. Taking a stainless steel enterprise with wastewater volume of 100m3/h as an example, the production of mixed sludge exceeds 15,000 tons/year, excluding the operation and maintenance costs of chemicals, energy consumption and manpower.

Company

About Us

Local Agent

Products

Applications

Videos

Certification

Service

Shipping & Delivery

Down Payment

Download Our Category

Contact Us

Jianglin steel, Yuanjiabao, Chagugang county, Wuqing District, Tianjin

  • [email protected]
  • 0086 022-29493622

© Copyright 2022 Jianglin Stainless All right reserved.

After filling up forms, so we can redirect and send you our latest catalog immediately.

  • Special Alloy
  • SS Bar
  • SS Coil
  • SS Seamless Pipe
  • SS Sheet&Plate
  • SS Strip
  • SS Welded Tube & Pipe
  • SS Wire

you are also most welcome to ask our salesman to check for you, [email protected]

Downpayment

We provide Down Payment to all of our clients for securing clients’ demands. Contact us for a feasible down payment method.

This product is special, please contact our sales directly to get more information.
Our sales representative will reach you shortly. 

or you can simply email to us: [email protected]

Need some help? Just leave your question to Bob

Bob: 7 years experience

or you can simply email to us: [email protected]

 

 

Need some help? Just leave your question to Lisa

Lisa: 5 years experience

or you can simply email to us: [email protected]

 

Need some help? Just leave your question to Bella

Bella: 5 years experience

or you can simply email to us: [email protected]

 

 

Need some help? Just leave your question to Lean

Lean: 7 years experience

or you can simply email to us: [email protected]

 

 

   Need some help? Just leave your question to Carina

   Carina: 7 years experience

   or you can simply email to us: [email protected]

 

 

Inquiry

Need some help?Just leave your contact, 
Our sales representative will reach you shortly. 

or you can simply email to us: [email protected]

Need some help?Just leave your contact, 
Our sales representative will reach you shortly. 

or you can simply email to us: [email protected]

Order Tracking

Thank you for checking our order progress!

Just Insert our PI No. and your contact Email

Talk to our professional sales?