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Recovery and treatment of acid wastewater from Xinxiang Chemical fiber plant

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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Recovery and treatment of acid wastewater from Xinxiang Chemical fiber plant
Flocculants - an overview | ScienceDirect Topics
Flocculants - an overview | ScienceDirect Topics

In wastewater treatment, polyacrylamide-based flocculants are commonly used. Because they can contain potentially toxic, acrylamide, residues, flocculants based on natural biopolymers are preferred over synthetic polymers. An effective biopolymer flocculant for harvesting microalgae is chitosan, which is prepared by deacetylation of chitin.

Coagulation and Flocculation in Water and Wastewater ...
Coagulation and Flocculation in Water and Wastewater ...

Organics removal and enhanced coagulation are effective with traditional coagulants like aluminum sulfate, ferric chloride and ferric sulfate, as well as formulations like polyaluminum chloride (PACl) and acid alum. Acid alum formulations are aluminum sulfate with 1 to 15-percent free sulfuric acid.

water treatment - coagulation-flocculation typical ...
water treatment - coagulation-flocculation typical ...

Organic flocculants come in three forms: solid; emulsion (polymer in an organic solvent emulsion); solution (approximately 20 g · L –1 in a water-based medium). The use of solid or emulsion flocculants always requires a specially prepared solution. These products always require secondary dilution (see section using “polyelectrolyte” polymers).

Wastewater: Industrial Metal Finishing
Wastewater: Industrial Metal Finishing

the ,types, of treatment systems options available to make these discharges safe for the environment. ... Contaminants and characteristics of ,wastewater, from these ,types, of operations include: • pH excursions caused by ,acid, and caustic cleaning and plating bath carryover ... and ,flocculants, …

GAS PROCESSING: WASTEWATER TREATMENT AND DISPOSAL:
GAS PROCESSING: WASTEWATER TREATMENT AND DISPOSAL:

These ,regulations, usually consider technology limitations, volume of ,discharge, and concentration of pollutants, method of disposal, nature of the receiving stream, etc. Some ,wastewater, streams either with or without treatment may be recycled for use in systems requiring water of lesser quality.

(PDF) Wastewater Management Recycling and Discharge
(PDF) Wastewater Management Recycling and Discharge

The increasing ,discharge, of ,wastewater, due to increase in ... train similar to the ,wastewater, reclamation reuse ,regulations, in ... -availability of the amino ,acid, residues ...

INDUSTRIAL PRETREATMENT PROGRAM
INDUSTRIAL PRETREATMENT PROGRAM

users in compliance with federal ,regulations,. Our regional ,wastewater, treatment . ... If you ,discharge, anything other than sanitary or domestic ,wastewater,, ... using hydrofluoric ,acid,. Local ,Discharge, Limits . Parameter Local ,Discharge, Limit . pH Between 6.0 - 11.0 ...

Flocculants and Coagulants | ChemTreat Inc.
Flocculants and Coagulants | ChemTreat Inc.

Inorganic, organic,, or a combination of both coagulant types are typically used to treat water for suspended solids removal. When an inorganic coagulant is added to water containing a colloidal suspension, the cationic metal ion from the coagulant neutralizes the negatively charged electric double layer of the colloid.

A review on application of flocculants in wastewater ...
A review on application of flocculants in wastewater ...

22 rows, · ,1/11/2014, · ,Flocculants, are divided into three groups: chemical, natural and, grafted flocculants,. • Methods ...

Flocculants for wastewater treatment: types principle of ...
Flocculants for wastewater treatment: types principle of ...

Types, and classes ,of flocculants,. All reagents for flocculation are divided into classes according to the type of their origin: Organic (natural): guar gums, starch and dextrin, sodium alginate, cellulose ether. Inorganic: silicic ,acid,. It is especially active against metal hydroxides - aluminum, iron, magnesium, etc.

Chelated Wastewater Treatment
Chelated Wastewater Treatment

An improved chemical treatment method was required to meet ,wastewater discharge, criteria with the existing process and equipment. Existing technology. The existing ,wastewater, treatment program included the application of an aluminum based coagulant for solids neutralization, agglomeration, and settling. Final pH was maintained at 8.0 SU.

Flocculant used used for all kinds of mineral processing ...
Flocculant used used for all kinds of mineral processing ...

In most mineral processing processes, ,flocculants, are used for settling and centrifugation. CHINAFLOC - PAM series products used in mineral processing industry, could be selected according to the using conditions or produce according to customers specific requirements. The ,flocculants, are optimized according to the ,types, of mining, and our products and services are introduced in the field of ...

water treatment - coagulation-flocculation typical ...
water treatment - coagulation-flocculation typical ...

Organic ,flocculants, come in three forms: solid; emulsion (polymer in an organic solvent emulsion); solution (approximately 20 g · L –1 in a water-based medium). The use of solid or emulsion ,flocculants, always requires a specially prepared solution. These products always require secondary dilution (see section using “polyelectrolyte” polymers).

ISO 14001 and wastewater treatment: Required processes
ISO 14001 and wastewater treatment: Required processes

1/7/2019, · The effluent treatment plant removes suspended solid matter (as sludge) and floating oils from the ,wastewater,. The remaining emulsified oil is removed by chemical treatment using hydrochloric ,acid, and aluminum sulfate. Lime is added to neutralize the ,wastewater, prior to ,discharge, to the municipal sewer.

(PDF) Polymeric flocculants for wastewater and industrial ...
(PDF) Polymeric flocculants for wastewater and industrial ...

Synthetic polymers, are highly effective flocculants at small dosages and have high tailorability but poor shear stability. Concern for environmental and ecological issues warrants the use of...

CHARACTERIZATION AND PERFORMANCE EVALUATION OF …
CHARACTERIZATION AND PERFORMANCE EVALUATION OF …

flocculants, (alum, ferrite ,flocculants,, or poly-aluminium chloride), synthetic organic ,flocculants, (polyacrylamide derivatives), and naturally occurring ,flocculants, (sodium alginate or microbial ,flocculants, [3]. There are different ,types, of mechanism that initiate flocculation process. Flocculation occurs either by bridging,

Flocculants for wastewater treatment: types principle of ...
Flocculants for wastewater treatment: types principle of ...

Types, and classes of ,flocculants,. All reagents for flocculation are divided into classes according to the type of their origin: Organic (natural): guar gums, starch and dextrin, sodium alginate, cellulose ether. Inorganic: silicic ,acid,. It is especially active against metal hydroxides - aluminum, iron, magnesium, etc.

Wastewater Disinfection with Peracetic Acid (PAA) and UV ...
Wastewater Disinfection with Peracetic Acid (PAA) and UV ...

Peracetic ,acid, (PAA) and Ultraviolet (UV) combination was shown to provide effective bacterial reduction during field pilot trialing at the Muddy Creek ,Wastewater, Treatment Plant, located in Cincinnati, OH. Reduction of both fecal coliform and E. coli to below the permitted requirements was demonstrated even at low UV energy doses.

Industrial Wastewater Treatment of Food Industry Using ...
Industrial Wastewater Treatment of Food Industry Using ...

wastewater, and industrial ,wastewater, respectively. The main environmental problem of the industry is that the industrial ,wastewater, resulting from the facility is not meeting the limits of the environmental ,regulations, for the ,discharge, of ,wastewater, to the sewer network.

WASTEWATER PRACTICES: MERCURY DISCHARGE Introduction
WASTEWATER PRACTICES: MERCURY DISCHARGE Introduction

wastewater, treatment chemicals and cleaning supplies and equipment. In the Boston metropolitan area, the ,discharge, of mercury to the sewerage system is strictly prohibited by the Massachusetts Water Resources Authority (MWRA). Other agencies maintain similar ,discharge, requirements in other areas.

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