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Acidic and alkaline wastewater containing fluorine

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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Acidic and alkaline wastewater containing fluorine
Carbamazepine and Its Metabolites in Wastewater and in ...
Carbamazepine and Its Metabolites in Wastewater and in ...

Samples of biosolids and, wastewater, were analyzed for caffeine and CBZ and five of its metabolites, 10,11-dihydro-10,11-epoxycarbamazepine (CBZ-EP), 11-dihydro-10,11-epoxycarbamazepine (CBZ-DiOH),...

Elimination of Carbamazepine Diclofenac and Naproxen from ...
Elimination of Carbamazepine Diclofenac and Naproxen from ...

This is advantageous in wastewater treatment because no salt concentrate is produced. Carbamazepine was retained only slightly by the nanofiltration membranes, whereas approximately 60% of diclofenac and naproxen were retained by both membranes.

Removal of carbamazepine from urban wastewater by sulfate ...
Removal of carbamazepine from urban wastewater by sulfate ...

In laboratory grade water and in real urban, wastewater,, SO 4 ·− yielded a faster degradation of, carbamazepine, compared to HO ·. Under strongly oxidizing conditions, a nearly complete mineralization of, carbamazepine, was achieved, while under mildly oxidizing conditions, several intermediates were identified by LC–MS.

Carbamazepine removal from wastewater and the degradation ...
Carbamazepine removal from wastewater and the degradation ...

1/10/2020, · A submerged forward osmotic membrane bioreactor (FOMBR) was used to reveal the removal and degradation mechanism of carbamazepine (CBZ) from wastewater. The results showed that the removal mechanism consisted of the rejection of the forward osmotic (FO) membrane and biodegradation of the activated sludge.

Removal of pharmaceuticals from wastewater by biological ...
Removal of pharmaceuticals from wastewater by biological ...

The suspended activated sludge process showed poor and inconsistent removal of clofibric ,acid,, carbamazepine and diclofenac, while ibuprofen, naproxen and ketoprofen yielded over 74% removal. Moving bed biofilm reactors were filled with two different types of carriers i.e. Kaldnes K1 and Mutag BioChip™ and resulted in higher removal efficiencies for ibuprofen and diclofenac.

Carbamazepine removal from wastewater and the degradation ...
Carbamazepine removal from wastewater and the degradation ...

1/10/2020, · A submerged forward osmotic membrane bioreactor (FOMBR) was used to reveal the removal and degradation mechanism of carbamazepine (CBZ) from ,wastewater,. The results showed that the removal mechanism consisted of the rejection of the forward osmotic (FO) membrane and biodegradation of the activated sludge.

A review on removing pharmaceutical contaminants from ...
A review on removing pharmaceutical contaminants from ...

Anderson et al. (2013) Full-scale Carbamazepine, Gemfibrozil, Sulfamethoxazole, Sulfapyridine Rural ,wastewater, from the Rural Municipality of St. Clements near Grand Marais, Manitoba, Canada Septic tank Hybrid Lagoon and SF-CW in series Two lagoons in series: 134 m long, 134 m wide and 2.3 m deep each; water depth was 1.5m;

Caffeine vs. carbamazepine as indicators of wastewater ...
Caffeine vs. carbamazepine as indicators of wastewater ...

This paper presents the analysis of caffeine and carbamazepine transport in the subsurface as a result of wastewater release in the Sorek creek over the outcrops of the carbonate, Yarkon-Taninim, aquifer in Israel. Both caffeine and carbamazepine were used as indicators of sewage contamination in …

Solar photodegradation of carbamazepine from aqueous ...
Solar photodegradation of carbamazepine from aqueous ...

1/1/2019, · Treated ,wastewater, effluents are significant sources of pharmaceuticals residues in bodies of water, ... Photocatalytic degradation of carbamazepine, clofibric ,acid, and iomeprol with P25 and Hombikat UV100 in the presence of natural organic matter (NOM) and other organic water constituents, Water Res., 2005, 39(2), 403-411.

Occurrence and fate of carbamazepine clofibric acid ...
Occurrence and fate of carbamazepine clofibric acid ...

An overall removal rate of all these pharmaceuticals was estimated in surface waters, under real-world conditions (in a lake), using field measurements and modeling. Carbamazepine and clofibric acid were fairly persistent. Phototransformation was identified as the main elimination process of diclofenac in the lake water during the study period.

Removal of carbamazepine from urban wastewater by sulfate ...
Removal of carbamazepine from urban wastewater by sulfate ...

In laboratory grade water and in real urban wastewater, SO 4 ·− yielded a faster degradation of carbamazepine compared to HO ·. Under strongly oxidizing conditions, a nearly complete mineralization of carbamazepine was achieved, while under mildly oxidizing conditions, several intermediates were identified by LC–MS.

Occurrence and fate of carbamazepine clofibric acid ...
Occurrence and fate of carbamazepine clofibric acid ...

15/3/2003, · An overall removal rate of all these pharmaceuticals was estimated in surface, waters,, under real-world conditions (in a lake), using field measurements and modeling., Carbamazepine, and clofibric, acid, were fairly persistent. Phototransformation was identified as the main elimination process of diclofenac in the lake, water, during the study period.

(PDF) Determination of Acidic Pharmaceutical Products and ...
(PDF) Determination of Acidic Pharmaceutical Products and ...

A successful chemical derivatization of, carbamazepine, and, acidic, compounds using N,O-bis (trimethylsilyl) trifluoroacetamide +10% trimethylchlorosilane is also described. The …

A review on removing pharmaceutical contaminants from ...
A review on removing pharmaceutical contaminants from ...

Anderson et al. (2013) Full-scale ,Carbamazepine,, Gemfibrozil, Sulfamethoxazole, Sulfapyridine Rural ,wastewater, from the Rural Municipality of St. Clements near Grand Marais, Manitoba, Canada Septic tank Hybrid Lagoon and SF-CW in series Two lagoons in series: 134 m long, 134 m wide and 2.3 m deep each; water depth was 1.5m;

Carbamazepine and diclofenac: Removal in wastewater ...
Carbamazepine and diclofenac: Removal in wastewater ...

1/11/2008, · Carbamazepine, diclofenac and, their metabolites are flushed with wastewater to the WWTPs through the sewage system, (exfiltration disregarded). If not effectively removed in the WWTPs, these compounds will find their ways into the ecosystem.

Presence and Fate of Carbamazepine Oxcarbazepine and ...
Presence and Fate of Carbamazepine Oxcarbazepine and ...

This includes the antiepileptic carbamazepine, which is not removed during conventional wastewater treatment and was found to be ubiquitous in the aquatic environment. Some carbamazepine metabolites have also been found in treated wastewater, but only five of them have been studied to date.

Carbamazepine biodegradation and volatile fatty acids ...
Carbamazepine biodegradation and volatile fatty acids ...

The micropollutant carbamazepine (CBZ) is persistent and resistant to conventional wastewater treatment. This study investigated the role of fermentative acidogenic bacteria (FAB) and sulfate‐reducing bacteria (SRB) for CBZ biodegradation and volatile fatty acid (VFA) production.

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