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Treatment of acid wastewater with limestone and sodium carbonate

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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Treatment of acid wastewater with limestone and sodium carbonate
Nitrate Removal from Synthetic Wastewater by using Bio ...
Nitrate Removal from Synthetic Wastewater by using Bio ...

Nitrate, Removal from Synthetic ,Wastewater, by using Bio-adsorbent Sumiya U. and Anu N. Abstract — Environmental pollution is the most terrible ecological crisis to which we are subjected today. Today the environment has become foul, contaminated, undesirable, and therefore harmful for the health of living organisms, including man.

Environment Protection Engineering
Environment Protection Engineering

REMOVAL, OF NITRATES FROM ,WASTEWATER, ... There is used a procedure when exhausted ,acid, waters, drained from the ,underground,, are neutralized in the surface treatment plant, usually by ... lower ratio, ,nitrate removal, during the experiment was from 470.0 to 525.6 mg NO 3-N.

Treatment of Water Using Water Hyacinth Water Lettuce and ...
Treatment of Water Using Water Hyacinth Water Lettuce and ...

5/2/2012, · This was due to osmotic pressure at higher concentrations not supporting the uptake of nitrate[140]. In the ground water samples, the nitrate removal was greatly dependent upon the presence of other nutrients, such as sulphate and phosphate, which caused lower …

Nitrogen compounds at mines and quarries
Nitrogen compounds at mines and quarries

tion for the, removal of nitrogen, from, wastewaters,, in mine applications these tech-niques may be limited by the temperature dependence, especially in cold regions. Zero-valent metals can be utilised for passive reduction of, nitrate, in aqueous solu-tion. However, whilst no …

Evaluation of Nitrate Removal from Wastewater Using ...
Evaluation of Nitrate Removal from Wastewater Using ...

Therefore,, nitrate, must be, removed, from contaminated, underground., Electrochemical method has many advantages in comparison with reverse osmosis or ion exchange, such as lower cost, requires less space, less sludge production and requires fewer chemical materials. The aim of this study is to evaluate, nitrate removal, by electrochemical method.

Sodium dithionite | Na2S2O4 - PubChem
Sodium dithionite | Na2S2O4 - PubChem

Sodium dithionite, is a whitish to light yellow crystalline solid having a sulfur dioxide-like odor.It spontaneously heats on contact with air and moisture. This heat may be sufficient to ignite surrounding combustible materials.

Nitrate Removal Ion exchange resin - KIVI WATER TECH
Nitrate Removal Ion exchange resin - KIVI WATER TECH

MCR17 is working above pH>5, and regenerated by 8-10%NaCl. In USA and Europe, nitrate in drinking water is requested less than 1ppm. MCR17 is designed for the reasonl to remove nitrate and nitrite less than ppb level from underground water, tap water, lake water source.

Nitrogen and Phosphorus Recovery from Wastewater ...
Nitrogen and Phosphorus Recovery from Wastewater ...

20/8/2015, · The most common species of vegetation used for free-surface assimilation are Eichhornia crassipes (water hyacinth), Pistia stratiotes (water lettuce), and several species of Lemnaceae (duckweed); these aquatic plants can be harvested and sold as a source of nutrients in fish and animal feeds, while also removing as much as 83–87 % total nitrogen and 70–85 % total, phosphorus, removal …

How Lead Ended Up In Flint’s Tap Water
How Lead Ended Up In Flint’s Tap Water

As a ,wastewater, professional I can answer the 1st question, at least for my area (Georgia). ,Wastewater, treatment plants (WWTP) do in fact treat and remove phosphorus. As new permits are issued the ...

Biological nitrate removal in industrial wastewater ...
Biological nitrate removal in industrial wastewater ...

Biological ,nitrate removal, in industrial ,wastewater, treatment: which electron donor we can choose Although heterotrophic denitrification is an efficient and well-developed process, some carbon content in ,wastewater, is essential to maintain bacterial activity.

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

best performance for simultaneous removal of ammonia and humic ,acid, at the pH close to that of natural waters [5]. The use of natural and modified zeolites has been further investigated for the simultaneous removal of Fe and Mn ions from ,underground, water samples. In particular, Fe and Mn removal levels are between 22-90% and 61-100% for

Evaluation of Nitrate Removal from Water using Activated ...
Evaluation of Nitrate Removal from Water using Activated ...

Nitrate removal in both adsorbents by increasing the contact time increases and the most removal was done in the first 60 minutes and then removing rate is decreased. For economic reasons and that the removal rate of nitrate decreased after 60 minutes, optimal contact time of 60 minutes was determined.

Organic acid Removal Ion exchange resin - KIVI WATER TECH
Organic acid Removal Ion exchange resin - KIVI WATER TECH

SMAP50 is ideally suited to the removal of nitrates or sulphates from process waste and from condensate in nitrogen based fertilizer production. it is sensitive to nitrites and hence their prior removal from solution by oxidation is recommended. SMAP50 is mainly applicable for the refining of citric acid and lactic acid.

Nitrate Removal from Waste-Water Using Silica Nanoparticles
Nitrate Removal from Waste-Water Using Silica Nanoparticles

A few decades ago, adsorption processing has been investigated and widely applied for removal of nitrate ions in waste-water due to its benefits, i.e., high adsorption capacity, ease-of-use, and environmentally friendly method. For examples, several adsorption materials have been used for nitrate ion removal such as coal-fired blue gas [ 20

(PDF) Nitrate removal from water using alum and ferric ...
(PDF) Nitrate removal from water using alum and ferric ...

Both reactions boosted removal efficiency and kinetics around 3.5 times more than that by ordinary pristine nano-Fe0 alone, i.e. ,nitrate, removal time was reduced from one hour to 20min.

A Review on Heavy Metals (As Pb and Hg) Uptake by Plants ...
A Review on Heavy Metals (As Pb and Hg) Uptake by Plants ...

Heavy metals are among the most important sorts of contaminant in the environment. Several methods already used to clean up the environment from these kinds of contaminants, but most of them are costly and difficult to get optimum results. Currently, phytoremediation is an effective and affordable technological solution used to extract or remove inactive metals and metal pollutants from ...

Nitrate removal from water using functionalized carbon ...
Nitrate removal from water using functionalized carbon ...

1/11/2012, · The N-CNT sheets were washed using DI water several times until pH of the washing water showed no change, then dried at 110 °C for 24 h. The functionalized CNT sheets (O- and N-CNT sheets) were used as adsorbent for nitrate removal from water.

(PDF) Evaluation of Nitrate Removal from Wastewater Using ...
(PDF) Evaluation of Nitrate Removal from Wastewater Using ...

To avoid fore mentioned health problems,, removal of nitrate, from drinking water is necessary. Many researchers have studied the organic and inorganic compounds, removal, using electrochemical treatment methods. For instance Jafarzadeh et al. (2010) studied, removal, of, propylene glycol, from, wastewater.

(PDF) Evaluation of Nitrate Removal from Wastewater Using ...
(PDF) Evaluation of Nitrate Removal from Wastewater Using ...

Pollution of under groundwater by nitrate is a serious problem that has been widely observed worldwide. This type of pollution can be dangerous for human health and especially for children. Therefore, nitrate must be removed from, contaminated under

(PDF) Nitrate and Nitrite Removal from Wastewater using Algae
(PDF) Nitrate and Nitrite Removal from Wastewater using Algae

28/8/2015, · ,Microalgae, have a high capability to remove combined nitrogen compounds, ammonia, nitrate and nitrite, from wastewaters. Methods: The algae assimilates inorganic nitrogen and …

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