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Influencing factors of fracturing fluid flowback

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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Influencing factors of fracturing fluid flowback
Wastewater Using Plant Extracts of Eucalyptus Callistemon ...
Wastewater Using Plant Extracts of Eucalyptus Callistemon ...

of groundwater quality in illegal ,mining, sites in Zamfara State, Nigeria [4,21–23]. Obiadi et al. (2016) also reported the highest levels of ,acidity,, ,iron, and sulfate in the groundwater near artisanal ,mining, sites in the Enugu area of Nigeria [24]. Most of the heavy metals herein referred to as PTE, i.e., As, Cd, Pb, Fe and Hg, are known to

Process effluents and mine tailings: sources effects and ...
Process effluents and mine tailings: sources effects and ...

19/12/2016, · The high metal concentrations and ,acidity, observed in waters from ,mining, areas depend on several parameters and processes, such as the buffering capabilities of the host rock, ,ore, deposits depth and permeability, and the type and abundance of the metal-bearing sulfides. ,Mining, operation impacts on water contamination are shown in Fig. 1.

Recovery of Iron Nanoparticles from Mine Wastewater Using ...
Recovery of Iron Nanoparticles from Mine Wastewater Using ...

Abstract. Mine ,wastewater, (MW) is often rich in heavy metals that can have measurable effects on humans. The storage and treatment of MW remains a challenge for most ,mining, companies. ,Iron, (Fe) in MW was removed by using extracts from Eucalyptus globulus (EG); Callistemon viminalis (CV); and Persea americana (AS).

FO-RO for mining wastewater treatment - ScienceDirect
FO-RO for mining wastewater treatment - ScienceDirect

1/1/2020, · Abstract. In this chapter, a combined forward osmosis (FO) and reverse osmosis (RO) process for ,mining wastewater, treatment is discussed. Water interactions in ,mining, process, ,wastewater, characteristic treatment methods adopted, and the research technology gaps are briefly discussed. A lab-scale integrated FO-RO was developed to establish the proof ...

(PDF) A Study of Using Natural Sorbent to Reduce Iron ...
(PDF) A Study of Using Natural Sorbent to Reduce Iron ...

Wastewater, from ,iron ore mining,, steel production, and metal processing, among other heavy metals, also contains high concentrations ,of iron, (Fe3+).

Mining Wastewater | liquideffluents
Mining Wastewater | liquideffluents

17/5/2012, · Indeed the pH of ,mining wastewater, can be a huge concern for many mines, both operational and abandoned. Lottermoser (2010) gives the following classification of mine waters based on pH: Extremely acidic: ph<1, extreme examples of acidities generated through sulphide oxidation and hydrolysis reactions.

PILOT SCALE STUDY ON ACID MINE WATER TREATMENT USING …
PILOT SCALE STUDY ON ACID MINE WATER TREATMENT USING …

- Alunis-Asecare mine water is a pollution source with significant acidity characteristic (pH≤3); - from the heavy metals category, iron is the dominant specie especially in the form Fe(II). This ionic iron specie leads to the necessity of aeration in order to be oxidized …

The Cause and Effects of Acid Mine Drainage - 1699 Words ...
The Cause and Effects of Acid Mine Drainage - 1699 Words ...

In 2009, as the world’s leading exporter ,of iron,, Australia traded 362 tonnes ,of iron ore,, of varying compositions, at a value of $30 billion. (Geoscience Australia, n.d.) In Australia, ,iron ore mining, is conducted in what are known as ‘open-cut’ mines, meaning that the mines are pits along the surface

Removal of Heavy Metals from Acid Mine Drainage: A Review
Removal of Heavy Metals from Acid Mine Drainage: A Review

Ferric ,Iron, + Water Ferric Hydroxide (yellow boy) + ,Acidity, Hydrolysis of Fe (III) and precipitation ,of iron, (III) hydroxide if pH >3.5 FeS2 + 14Fe 3+ + 8H 2O 15Fe 2+ + 2SO 4 2-+ 16H+ (4) Pyrite + Ferric ,Iron, + Water Ferrous ,Iron, + Sulfate + ,Acidity, Here ,iron, (F e (III)) as oxidizing agent, in place of oxygen for Oxidation of additional pyrite ...

(PDF) Uptake of dangerous elements from industrial ...
(PDF) Uptake of dangerous elements from industrial ...

The ,acidity, of mine drainage is caused primarily by the oxidation of pyrite, a mineral containing ,Iron, and sulphide, commonly found in tailings, overburden and other mine waste piles. The rate of oxidation depends on the following: reactive surface area of the pyrite, the oxygen concentration and pH of the water, and the presence ,of Iron,-oxidizing bacteria (e.g. Thiobacillus ferroxidans).

(PDF) Phytotoxicity Study of Native Plants in ex-mining ...
(PDF) Phytotoxicity Study of Native Plants in ex-mining ...

In this ,study,, before phytoremediation technology can be used to treat ,mining wastewater,, the range of the mixture of Fe and Al concentrations was determined in order to investigate the plant ...

Removal of Heavy Metals from Acid Mine Drainage: A Review
Removal of Heavy Metals from Acid Mine Drainage: A Review

Iron, sulfide (Pyrite) + Air (Oxygen) + moisture (Water) Ferrous ,Iron, +Sulfate + ,Acidity, Pyrite exposed in the presence of oxygen and water to produce ,iron, (II), sulfate, and hydrogen ions. 4Fe2+ + 7O 2 +2H2O 4Fe 3+ + 2H 2O (2) Ferrous ,Iron, + Oxygen + Water Ferric ,Iron, + water Step 2 shows oxidation of Fe (II) to Fe (III) 4Fe3+ 12 H 2O 4Fe (OH)3 + 12H +

Acid mine drainage - Wikipedia
Acid mine drainage - Wikipedia

Tailings piles or ponds, mine waste rock dumps, and coal spoils are also an important source of acid mine drainage. After being exposed to air and water, oxidation of metal sulfides (often pyrite, which is iron-sulfide) within the surrounding rock and overburden generates acidity.

Acid mine drainage - Wikipedia
Acid mine drainage - Wikipedia

14/6/2004, · Tailings piles or ponds, mine waste rock dumps, and coal spoils are also an important source of acid mine drainage. After being exposed to air and water, oxidation of metal sulfides (often pyrite, which is ,iron,-sulfide) within the surrounding rock and overburden generates ,acidity,.

Effective acid and metals treatment in tailings dams ...
Effective acid and metals treatment in tailings dams ...

Waste rock is the mined rock not processed for ,ore, extraction, and may include overburden, low-grade ,ore,, and other rock and soil wastes. Mine tailings are the fine milled rock which is deposited into dams after ,ore, extraction; and ,wastewater, is the leftover process water and other liquid wastes which is used to pump tailings into holding dams or pumped into ,wastewater, dams independently.

Non-metallic carbonous minerals in the passive treatment ...
Non-metallic carbonous minerals in the passive treatment ...

1/5/1999, · The typical characteristics of, mine drainage, are high, acidity, and, high, metal and, sulphate concentrations. High concentrations of, iron,, aluminium and manganese are common, although other metals may also be present, depending on the mineralogy of the surrounding host rock , , . 1.1. Passive treatment of, mining wastewater

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