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What does it mean to treat 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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What does it mean to treat acid wastewater
Wastewater Engineering
Wastewater Engineering

Autotrophic bacteria use carbon dioxide as a carbon source and oxidize inorganic compound for energy. Autotrophs of greatest significance in sanitary engineering are the nitrifying, sulfur, and ,iron, bacteria. 1. Nitrifying bacteria : They perform the following reactions : 2. Sulfur bacteria : They perform the following ,reaction, e.g. Thiobacillus :

ChemEngineering | Free Full-Text | Removal of Nitrate from ...
ChemEngineering | Free Full-Text | Removal of Nitrate from ...

This suggests that the ,reaction, between nZVI and ,nitrate, (,Equation, (1)) is faster than the ,reaction, between nZVI and H + (,Equation, (8)) at pH 3–5. On the other hand, at pH 5–7, the amount of dissolved Fe(II) resulting from ,nitrate, reduction kept increasing throughout the duration of the experiment, indicating that the ,nitrate, reduction rate is slower at pH 5–7 than that at the more …

Ammonium nitrate | NH4NO3 - PubChem
Ammonium nitrate | NH4NO3 - PubChem

Method 418 D. Chromotropic ,Acid, Method for determination ,of nitrate, nitrogen in water and ,wastewater,. ,Nitrate, /ion/ reacts with one mole of chromotropic ,acid, to form a yellow ,reaction, product with maximum absorbance at 410 nm.The maximum color develops within 10 min and is stable for 24 hr.

WASTEWATER TREATMENT TECHNOLOGIES FOR THE REMOVAL …
WASTEWATER TREATMENT TECHNOLOGIES FOR THE REMOVAL …

In ammonia stripping, lime or some other caustic substance is generally added to the ,wastewater, until pH reaches 10.8-11.5 standard units, converting ammonium hydroxide ions to ammonia gas according to equilibrium ,reaction,: The equilibrium is governed by pH and temperature, according to the ,equation, describing the ,reaction,'s ionization constant (Keq) The equilibrium in water of the …

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