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PH of strong acid wastewater

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.

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PH of strong acid wastewater
Treatment of Wastewaters from Offset Printing Industry by ...
Treatment of Wastewaters from Offset Printing Industry by ...

The major pollutants found in offset ,printing, waste are mainly characterized as volatile organic carbon (VOC), which is extremely toxic to the environment and difficult to be treated by the conventional process [2]. Investigation on chemical characteristics of ,printing, ink ,wastewater, revealed that the BOD 5

Flocculation as a Treatment Method for Printing Ink Wastewater
Flocculation as a Treatment Method for Printing Ink Wastewater

water-based or mixed ,printing, ink wastes. Because this type of ,wastewater, is highly colored by the pigments, which are visible even at very low concentrations, and is highly contaminated with organic materials, this ,wastewater, cannot be discharged to a ,waste water, system without treatment. In the present work, simulated ,wastewater, of two types of real

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

acid-base equilibria. At a given temperature the intensity of the ,acidic, or basic character of a solution is indicated by pH or hydrogen ion activity. Alkalinity and acidity are the acid- and base-neutralizing capacities of a water and usually are expressed as milligrams CaCO3 per liter.

Pretreatment of printing and dyeing wastewater by Fe/C ...
Pretreatment of printing and dyeing wastewater by Fe/C ...

A large volume of complex and refractory organic ,wastewater, is generated from dyeing, ,printing, and sizing processes with the development of the textile industry in recent years (Gupta et al. 2015). Such ,wastewater, not only is characterised by high color, poor biodegradability and biological toxicity, but also threatens the balance of ecology and the safety of human beings ( Holkar et al. 2016 ; Sultan 2017 ).

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