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Acid etching cleaning 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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Acid etching cleaning wastewater
EFFECT OF ACETIC ACID ON POLLUTANT DECOMPOSITION IN ...
EFFECT OF ACETIC ACID ON POLLUTANT DECOMPOSITION IN ...

Effect of ,acetic acid, on COD in ,dyeing wastewater, before and after the Fenton process. Amounts of FeSO 4⋅7H 2O – 1.6 g/dm 3, and H 2O 2 – 20 cm 3/dm3 . 34 L. KOS et al. In the case of the ,dyeing wastewater, with initial COD = 4170 mg O 2/dm 3, the dos-es of ,acetic acid, added were 0.4, 0.8, 2.1, 4.2 and 8.3 cm3/dm . Constant doses of fer-

Removal of Dyes from Textile Industrial Wastewater using ...
Removal of Dyes from Textile Industrial Wastewater using ...

Table 2 Results for Sample B (,Wastewater, of ,Acid, Dye Solution) Samples Original IB IIB IIIB IVB Parameters (B) BOD (mg/l) 80 68.5 40.24 35.14 29.05 COD (mg/l) 485 398.6 275.6 280 240.58 DO (ppm) 6.9 7.52 8 6.4 9.56 Free Chlorine content 2.98 2.25 ...

Poultry keratin based decolorants for dyeing wastewater ...
Poultry keratin based decolorants for dyeing wastewater ...

One of the challenges in ,wastewater, treatment is the low efficiency in decoloring ,dyeing wastewater,. Chicken feather, as a waste material, has a great potential in decoloring the ,dyeing wastewater,. In this study, a lab synthesized ,dyeing wastewater, prepared with ,acid, blue-A dye

Toxicity Appraisal of Untreated Dyeing Industry Wastewater ...
Toxicity Appraisal of Untreated Dyeing Industry Wastewater ...

In this study, screening of the fractionated ,wastewater, through GC-MS showed the presence of phenols, phthalic ,acid, derivatives and chlorpyrifos. Metal analysis revealed that chromium, arsenic and mercury were present in amounts higher than the ,wastewater, discharge limits. Textile ,dyeing wastewater, was found to be highly mutagenic in the Ames test.

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