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Papermaking wastewater is highly acidic

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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Papermaking wastewater is highly acidic
Study on the Law of Static Acid Production of Waste Rocks ...
Study on the Law of Static Acid Production of Waste Rocks ...

Interpretation on pH and EC: Acid is generated in 5 years, 10 years and 20 years, the initial pH values are 6.85, 2.24, 2.3 and 2.68 respectively, and the EC values are 1262μS·cm-1, 585μS·cm , 565μS·cm-1 and 232μS·cm-1 respectively, and all show ,acidic, property except for 1-year waste rock.

What is pH of Water? Methods of Determining pH of Water
What is pH of Water? Methods of Determining pH of Water

27/11/2017, · Colorimetric Method for pH of Water. Take the pH standard solution and the water that is to be tested. Take the colorimetric paper. Dip this paper on the, water, sample. The obtained color is computed from the standard table and the respective, pH, value is recorded. This pH Value will conclude whether the sample of water is acidic or alkaline.

(PDF) Electrochemical Recovery of Phosphorus from Acidic ...
(PDF) Electrochemical Recovery of Phosphorus from Acidic ...

Because of the, acidic, pH, the products recovered from, cheese wastewater, have a low percentage of CaCO 3 . Moreover, because of the “ clean ” nature of cheese

Electrochemical Recovery of Phosphorus from Acidic Cheese ...
Electrochemical Recovery of Phosphorus from Acidic Cheese ...

We first, demonstrated, that electrochemically induced calcium phosphate precipitation in cheese, wastewater, is possible, although the, wastewater, has an, acidic, environment (pH 4.4) and contains many organic species. As shown in Figure 4, by electrochemical treatment, cheese, wastewater, becomes relatively clean and transparent.

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