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Experimental study on solidification treatment of 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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Experimental study on solidification treatment of acid wastewater
Metal recovery of solid metallurgical wastes ...
Metal recovery of solid metallurgical wastes ...

pickling ,wastewater, [10], gold plant waste streams [11], spent ,copper,-cyanide electroplating electrolytes [12], and stripping solutions in the manufacture of printed circuit boards [13]. ,Copper, electrodeposition onto porous, fluidized and spouted bed electrodes and the treatment of ,copper,-,containing, waste streams is studied by J. W. Evans

Removal of Copper from Wastewater using Low Cost Adsorbents
Removal of Copper from Wastewater using Low Cost Adsorbents

Tumkur, Karnataka, India respectively. The ,wastewater, was obtained from an electroplating industry which had ,copper, concentration of 60mg/L. Horiba Jobin Yvon make (JY 200 model) Inductively Coupled Plasma Spectrometer (ICP) is used to determine the heavy metals contents. Argon gas is commonly used in the system and plasma temperature can

Selective Sulphide Precipitation of Copper Nickel and ...
Selective Sulphide Precipitation of Copper Nickel and ...

wastewater,, ,containing, 10 g/L Cu2+, 0.3 g/L Ni2+ and 3 g/L Zn 2+ ions, were treated at pH 2.3 and ,copper, was precipitated as CuS with almost 100% of efficiency.

CHEMICAL METHODS OF PURIFICATION OF WASTEWATER …
CHEMICAL METHODS OF PURIFICATION OF WASTEWATER …

The reagents are selected depending on the ,composition, and concentration ,of acidic waste water,. There are three types of acid-,containing wastewater,: water ,containing, weak acids (H2C03, CH3COOH); water ,containing, strong acids (HC1, HNO3); waters ,containing, sulfuric and …

(PDF) Standard Methods For the Examination of Water and ...
(PDF) Standard Methods For the Examination of Water and ...

Standard Methods For the Examination of Water and Wastewater,, 23nd edition, 2017. Toan Tran. Download PDF. Download Full PDF Package. This paper. A short summary of this paper. 32 Full PDFs related to this paper. READ PAPER. ,Standard Methods For the Examination of Water and Wastewater,…

Studies on elimination of copper from wastewater by ...
Studies on elimination of copper from wastewater by ...

Copper, is an essential element for living organisms, including human and is also necessary in small amounts in our diet to ensure good health. However, too much of ,copper, can cause adverse health effects including vomiting, diarrhea, stomach cramps and nausea5. ,Copper, is stored mainly in liver, brain, heart, kidney and muscles.

Natural Zeolites in Water Treatment – How Effective is ...
Natural Zeolites in Water Treatment – How Effective is ...

8/11/2011, · The chemical ,composition,, usually determined by several different methods: classical chemical analysis – gravimetric method, Atomic Absorption Spectrometry or X-ray Fluorescence Spectrometry, is very important for the efficiency of the water treatment processes and provides insight into the main amount of basic oxide components (SiO 2 and Al 2 O 3), exchangeable cations (Na +, K +, …

Oil and Gas Production Wastewater: Soil Contamination and ...
Oil and Gas Production Wastewater: Soil Contamination and ...

During oil and natural ,gas production,, so-called “produced water” comprises the largest byproduct stream. In addition, many oil and gas operations are augmented via injection of hydraulic fracturing (HF) fluids into the formation. Both produced water and HF fluids may contain hundreds of individual chemicals, some known to be detrimental to public health and the environment.

Effects of microplastics on wastewater and sewage sludge ...
Effects of microplastics on wastewater and sewage sludge ...

15/2/2020, · ZnCl 2, NaI and CaCl 2 can be used to extract microplastics from sludge. They all rely on density-based extraction techniques, which use density differences between sludge and microplastics to separate them. When sludge samples are placed in high density salt solution, plastic particles tend to float to the surface of the solution, while denser sludge materials remain at the bottom of the ...

CAUSES OF COPPER CORROSION IN PLUMBING SYSTEMS …
CAUSES OF COPPER CORROSION IN PLUMBING SYSTEMS …

Water ,composition, also plays a role in the formation of blue water due to the release of ,copper, corrosion products, which is more common in naturally soft waters but can also occur in waters of very high pH(>9), when stable ,copper, hydroxide forms. There is also good evidence that ,copper, pipework exposed to soft

Detection and diversity of copper containing nitrite ...
Detection and diversity of copper containing nitrite ...

Sequences obtained with the primers fnirK2F and fnirK1R were aligned with known and putative ,copper,-,containing, nitrite reductases from bacteria and fungi as well as with a multi-,copper, oxidase (Fig. 1). Two amino acid residues (His and Met) in type 1 ,copper, binding ligands were found at the beginning of the detected NirK sequences (Fig. 1).

14 Industrial Wastewater Treatment Principals and Ideas
14 Industrial Wastewater Treatment Principals and Ideas

Generally, alkaline mercury-,containing wastewater, is usually treated by chemical coacervation or sulfide precipitation; ,acidic, mercury-,containing wastewater, can be treated by metal reduction; low-concentration mercury-,containing wastewater, can be treated by activated carbon adsorption, chemical coacervation or activated sludge; organic mercury ,wastewater, is difficult to treat and …

The method of obtaining of copper oxychloride
The method of obtaining of copper oxychloride

The objective is achieved by the fact that the spent ,acidic, etching solution ,composition,, g/l: salt of ,copper, (CuCl 2, CuCl), ,copper, 120-200; hydrochloric acid (HCl) 30-150; water rest, which added 30% hydrogen peroxide in proportion 30-60 ml per liter of waste solution is mixed with the spent alkaline medioambiental solution of a complex salt of ,copper, [Cu(NH 3) 4]Cl ,containing, 30-150 …

Chemistry of persulfates in water and wastewater treatment ...
Chemistry of persulfates in water and wastewater treatment ...

15/12/2017, · 1. Introduction. Over the last few decades, ubiquitous contamination with various inorganic and organic substances has caused serious problems all over the world , .One reason is the misuse or overuse of antibiotics e.g. for agricultural purposes, which enrich the population of multi-resistant pathogens .In many countries with a low human development index (HDI), particularly in Africa and ...

Agricultural wastewater treatment - Wikipedia
Agricultural wastewater treatment - Wikipedia

Agricultural ,wastewater, treatment is a farm management agenda for controlling pollution from surface runoff that may be contaminated by chemicals in fertiliser, pesticides, animal slurry, crop residues or irrigation water.

TREATMENT OF ACIDIC WASTEWATER FROM THIEN KE TIN ...
TREATMENT OF ACIDIC WASTEWATER FROM THIEN KE TIN ...

from the ,wastewater,, such as iron from 143.1 mg/L to 0.3 mg/L, ,copper, from 16.32 mg/L to 0.04 mg/L and manganese from 10.9 mg/L to 0.05 mg/L. The continuous mode with a hydraulic load of 100 l/h and an according retention time of three days showed constitutive contaminant removal. The effluent pH of the system was around 7 within six-day period.

Detection and diversity of copper containing nitrite ...
Detection and diversity of copper containing nitrite ...

Sequences obtained with the primers fnirK2F and fnirK1R were aligned with known and putative ,copper,-,containing, nitrite reductases from bacteria and fungi as well as with a multi-,copper, oxidase (Fig. 1). Two amino acid residues (His and Met) in type 1 ,copper, binding ligands were found at the beginning of the detected NirK sequences (Fig. 1).

Application of Biosorption for Removal of Heavy Metals ...
Application of Biosorption for Removal of Heavy Metals ...

4/12/2017, · Fresh water accounts for 3% of water resources on the Earth. Human and industrial activities produce and discharge wastes ,containing, heavy metals into the water resources making them unavailable and threatening human health and the ecosystem. Conventional methods for the removal of metal ions such as chemical precipitation and membrane filtration are extremely expensive when …

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