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Main methods of treating 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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Main methods of treating acid wastewater
Technologies for Recovering Nutrients from Wastewater: A ...
Technologies for Recovering Nutrients from Wastewater: A ...

9/5/2019, · Therefore, conventional ,wastewater, treatment processes are focused principally on removal of ,nitrogen, from ,wastewater,, most commonly by biological nitrification and denitrification. Newly developed processes, such as Anammox, can convert ,ammonia, and nitrite to ,nitrogen, gas directly under anaerobic conditions (Jetten et al., 1998).

Chemicals in Water & Wastewater Treatment
Chemicals in Water & Wastewater Treatment

Chemical Used for ,Neutralization, 1. Calcium carbonate – CaCo 3 2. Calcium Oxide – CaO 3. Sodium bicarbonate – NaHCO 3 4. Sodium carbonate – Na 2 CO 3 5. Sodium hydroxide – NaOH 6. Carbonic ,acid, – H 2 CO 3 – Gas (CO 2) 7. Hydrochloric ,acid, – HCl 8. Sulfuric ,acid, – H 2 SO 4 Chemical Agents that have been used as Disinfectants 1 ...

Phosphate Recovery from Swine Wastewater by a Struvite ...
Phosphate Recovery from Swine Wastewater by a Struvite ...

20/6/2019, · Xiao et al. 1 claimed that the cost recovery of phosphate from swine ,wastewater, using the supernatant of the waste sulfuric ,acid after, dolomite ,neutralization, was 1.7 ¥/m 3, indicating that their ...

Technologies for Recovering Nutrients from Wastewater: A ...
Technologies for Recovering Nutrients from Wastewater: A ...

9/5/2019, · Therefore, conventional ,wastewater, treatment processes are focused principally on removal of ,nitrogen, from ,wastewater,, most commonly by biological nitrification and denitrification. Newly developed processes, such as Anammox, can convert ,ammonia, and nitrite to ,nitrogen, gas directly under anaerobic conditions (Jetten et al., 1998).

Nitrogen Syngas 2021 - CRU
Nitrogen Syngas 2021 - CRU

Wastewater, generated at a large-scale fertilizer complexes should preferably be ... Control of pH is of extreme importance in the ,neutralization, reaction process of Nitric ,Acid, and ,Ammonia, to produce ,Ammonia, Nitrate. Many ... From 2008-2020 he worked as a chemical engineer for the ,ammonia, plants of OCI ,Nitrogen, on the Chemelot site in the ...

TREATMENT TECHNOLOGIES OF MUNICIPAL WASTE LANDFILL LEACHATES
TREATMENT TECHNOLOGIES OF MUNICIPAL WASTE LANDFILL LEACHATES

that concentration of ,ammonia nitrogen increased, together with increasing landfill age within the first five years of operation from about 100 mg ⋅dm –3. up to 600 mg ⋅dm –3. An attempt to determine the ,nitrogen, content in leaches from mature and stabilized landfills was …

Biological and Chemical Wastewater Treatment Processes ...
Biological and Chemical Wastewater Treatment Processes ...

2/12/2014, · However, the ,increased, metabolism at the higher temperatures may lead to problems of oxygen limitations. 4.2. Bacterial ... were designed for removal of BOD 5 or ,ammonia nitrogen, (NH 3-N), or both, from ,wastewater, [1, 2]. ... ,Neutralization,: Case of acidic ,wastewater, . Note: a stoichiometric reaction will yield a pH of 7.0.

Integration of wastewater treatment into process design of ...
Integration of wastewater treatment into process design of ...

3/2/2020, · Often, ,nitrogen, must be added to during treatment as a necessary nutrient for microbial communities. Use of enough ,ammonia, hydroxide to provide ,nitrogen, for ,wastewater, treatment and supplementing with sodium hydroxide to achieve the desired pH adjustment could result more treatable ,wastewater, and potential cost savings. ,Wastewater, ...

Industrial waste water treatment - SlideShare
Industrial waste water treatment - SlideShare

For wastes entering biological treatment processes, the pH should be maintained between 6.5 and 9 for optimum growth of the microorganisms. Acidic wastes are commonly neutralized with waste alkaline streams, lime, dolomite, ,ammonia,, caustic soda, or soda ash. Lime is the most widely used alkaline material for ,neutralization acid, wastes because of its low cost.

Integration of wastewater treatment into process design of ...
Integration of wastewater treatment into process design of ...

3/2/2020, · Often, ,nitrogen, must be added to during treatment as a necessary nutrient for microbial communities. Use of enough ,ammonia, hydroxide to provide ,nitrogen, for ,wastewater, treatment and supplementing with sodium hydroxide to achieve the desired pH adjustment could result more treatable ,wastewater, and potential cost savings. ,Wastewater, ...

Method and apparatus for ammonia-nitrogen removal by ...
Method and apparatus for ammonia-nitrogen removal by ...

An apparatus for removing ,ammonia nitrogen, from ,wastewater, having a highly basic condition with a high pH and having a given temperature, ... If the temperature of the ,wastewater, is ,increased,, the graph shifts to the left. Thus, ... deammoniated liquid may be modified further by adding ,acid, in the ,neutralization, tank 170.

Photocatalytic Decomposition of Nonbiodegradable ...
Photocatalytic Decomposition of Nonbiodegradable ...

This research showed that CN− ion in the ,wastewater, was con-verted to ,ammonia,, nitrite, and nitrate. It was found that the con-centration of ammonium ,nitrogen increased, to 60mg/L ,after, 24hours from an initial concentration of 40mg/L. Fig.3 shows that the con-centration of nitrite ,nitrogen, was very low but the concentration of

Development of the Ammonia Injection Technology (AIT) for ...
Development of the Ammonia Injection Technology (AIT) for ...

Ammonia, Injection Technology (AIT) for the Control of PCDD/PCDF ... the ,neutralization, of a relatively strong ,acid, (HC1) with a basic material would take place preferentially to the chlorinations of heavy hydrocarbons. Since ... waste/,wastewater, treatment options.

1. Introduction - Hindawi
1. Introduction - Hindawi

Human activities appear to be the major contributor to water pollution, for instance, agricultural, industrial, and municipal activities. ,Nitrogen, surplus released into the environment has been proven to cause negative impacts on water qualities, human health, and ecosystems [1].Nonetheless, a wide range of technologies is available to reduce the release of ,ammonia nitrogen, into the ...

Photocatalytic Decomposition of Nonbiodegradable ...
Photocatalytic Decomposition of Nonbiodegradable ...

This research showed that CN− ion in the ,wastewater, was con-verted to ,ammonia,, nitrite, and nitrate. It was found that the con-centration of ammonium ,nitrogen increased, to 60mg/L ,after, 24hours from an initial concentration of 40mg/L. Fig.3 shows that the con-centration of nitrite ,nitrogen, was very low but the concentration of

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