Welcome to the company ! we have many years of professional experience !
rsdzd@pyzyrsd.com +86 513525609655

Treatment of acid etching wastewater of PCB

Established in 2001, Puyang Zhong Yuan Restar Petroleum Equipment Co.,Ltd, “RSD” for short, is Henan’s high-tech enterprise with intellectual property advantages and independent legal person qualification. With registered capital of RMB 50 million, the Company has two subsidiaries-Henan Restar Separation Equipment Technology Co., Ltd We are mainly specialized in R&D, production and service of various intelligent separation and control systems in oil&gas drilling,engineering environmental protection and mining industries.We always take the lead in Chinese market shares of drilling fluid shale shaker for many years. Our products have been exported more than 20 countries and always extensively praised by customers. We are Class I network supplier of Sinopec,CNPC and CNOOC and registered supplier of ONGC, OIL India,KOC. High quality and international standard products make us gain many Large-scale drilling fluids recycling systems for Saudi Aramco and Gazprom projects.

Certificate of Honor

Get in touch with us

We will confidentially process your data and will not pass it on to a third party.

Treatment of acid etching wastewater of PCB
Printing and Dyeing Wastewater Treatment
Printing and Dyeing Wastewater Treatment

Due to the diversity of ,wastewater, quality in different dyeing and ,printing, plants, the main manifestations are as follows: (1) Various chemicals are put into textile processing; (2) ,Printing, and dyeing ,wastewater, mainly comes from sewage, grease, various kinds of added …

Printing - Standard Methods for the Examination of Water ...
Printing - Standard Methods for the Examination of Water ...

Alkalinity and ,acidity, are the acid- and base-neutralizing capacities of a water and usually are expressed as milligrams CaCO 3 per liter. Buffer capacity is the amount of strong acid or base, usually expressed in moles per liter, needed

Acidity and Alkalinity - an overview | ScienceDirect Topics
Acidity and Alkalinity - an overview | ScienceDirect Topics

Effluent ,acidity and alkalinity, concentrations were 203 and 87 mg/L, and 213 and 65 mg/L, correspondingly. It was the stage where the SMC was exhausted in terms of alkalinity generation. At this point, NaHCO 3 was added as a buffering agent into the …

China How to treat wastewater from printing and dyeing ...
China How to treat wastewater from printing and dyeing ...

The ,printing, and dyeing industry consumes a lot of water, usually 100 to 200 tons of water per ton of textiles during ,printing, and dyeing. 80% to 90% of it is discharged as ,printing, and dyeing ,wastewater,. Commonly used treatment methods include recycling and harmless treatment. Recycle and re-us...

Iron and Metals Removal with H2O2 | USP Technologies
Iron and Metals Removal with H2O2 | USP Technologies

Ferrous iron (Fe+2), often occurs naturally in groundwater sources, and can also be found in industrial process and wastewaters, e.g. steel mills & coal mines (,acid, mine drainage). Hydrogen peroxide can be used to quickly oxidize soluble ferrous iron to ,ferric, (Fe+3), forming a rapidly settling ,ferric hydroxide, …

Chemical Profile Ferric Chloride | ICIS
Chemical Profile Ferric Chloride | ICIS

2/12/2005, · ,Ferric hydroxide, is produced forms flocs that adsorb suspended particles in the water. The flocks, with the adsorbed matter, are then allowed to settle out for removal. ,Ferric, chloride's most attractive economic feature is its high cost-effectiveness.

Diversification of acidity and alkalinity in printing and ...
Diversification of acidity and alkalinity in printing and ...

Diversification of ,acidity, and alkalinity in ,printing, and dyeing ,wastewater, treated by CWAO technology Zhang Yongli.(Institute of Eco-Environment,Hanshan Normal University,Chaozhou Guangdong 521041)

CN1323042C - Printing and dyeing wastewater recovery and ...
CN1323042C - Printing and dyeing wastewater recovery and ...

The systematic technology comprises the steps that the de-sizing ,waste water, and the alkali weight reduction ,waste water, are respectively preliminarily treated in the mode of acidification separation to recover separated pulp; the de-sizing ,waste water, and the alkali weight reduction ,waste water, are treated together with the dyeing ,waste water, in an A/O biochemical mode; after advanced treatment …

Printing - Standard Methods for the Examination of Water ...
Printing - Standard Methods for the Examination of Water ...

d. Selection of procedure: Determine sample ,acidity, from the volume of standard alkali required to titrate a portion to a pH of 8.3 (phenolphthalein ,acidity,) or pH 3.7 (methyl orange ,acidity, of wastewaters and grossly polluted waters). Titrate at room temperature using a properly calibrated pH meter, electrically operated titrator, or color indicators.

Textile Dyeing Wastewater Treatment - IntechOpen
Textile Dyeing Wastewater Treatment - IntechOpen

of ,wastewater, from different steps in the dy eing and finishing processes. ,Wastewater, from ,printing, and dyeing units is often rich in color, containing residues of reactive dyes and chemicals, such as complex components,many aerosols,high chroma,high COD and BOD concentration as well as much more hard-degradation materials. The toxic effects of

Water Handbook - Clarification | SUEZ
Water Handbook - Clarification | SUEZ

If ferrous compounds are used, oxidation to ,ferric, iron is needed for complete precipitation. This may require either chlorine addition or pH adjustment. The chemical reactions between the water's alkalinity (natural or supplemented) and aluminum or iron result in the formation of the ,hydroxide, …

Characterisation of Titanium Tetrachloride and Titanium ...
Characterisation of Titanium Tetrachloride and Titanium ...

ferric hydroxide, floc is also heavier than the aluminium floc, improving its settling characteristics, and reducing the size of the clarifier. However, the flocculation process using these coagulants produces large quantities of sludge which inhibit efficient ,wastewater, treatment. A coagulant that

Treatment of printing ink wastewater using ...
Treatment of printing ink wastewater using ...

1/5/2019, · When treating ,printing, ink ,wastewater, with an initial COD value of 5000 mg/L and applying a current density of 41.67 mA/cm 2, 76.78% COD removal was attained in the first 15 min using Al electrodes (Fig. 2a), while for Fe electrodes the equivalent percentage was 71.10% within 20 min (Fig. 2b).

Diversification of acidity and alkalinity in printing and ...
Diversification of acidity and alkalinity in printing and ...

Diversification of ,acidity, and alkalinity in ,printing, and dyeing ,wastewater, treated by CWAO technology Zhang Yongli.(Institute of Eco-Environment,Hanshan Normal University,Chaozhou Guangdong 521041)

Printing - Standard Methods for the Examination of Water ...
Printing - Standard Methods for the Examination of Water ...

Alkalinity and ,acidity, are the acid- and base-neutralizing capacities of a water and usually are expressed as milligrams CaCO 3 per liter. Buffer capacity is the amount of strong acid or base, usually expressed in moles per liter, needed

CN104478134A - Printing and dyeing wastewater treatment ...
CN104478134A - Printing and dyeing wastewater treatment ...

The invention discloses a ,printing, and dyeing ,wastewater, treatment process, and aims at providing a ,printing, and dyeing ,wastewater, treatment process with a good ,wastewater, purification effect. The ,printing, and dyeing ,wastewater, treatment process comprises a water storage regulating reservoir, a pre-reaction tank, a medium reaction tank, a separation tank, a coagulation reaction tank, a ...

Chat Online Inquiry Email

Business cooperation

+86 513525609655

Company address

Road West, North Branch, Jingkai Road, Puyang City