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Acid pesticide wastewater containing aluminum

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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Acid pesticide wastewater containing aluminum
Impact of imidacloprid on Daphnia magna under different ...
Impact of imidacloprid on Daphnia magna under different ...

Article Impact of ,imidacloprid, on Daphnia magna under different food quality regimes. Aquatic ecosystems are characterized by fluctuating conditions that have direct effects on aquatic communities, but also indirect influences such as changing the to...

Neonicotinoid insecticide hydrolysis and photolysis: Rates ...
Neonicotinoid insecticide hydrolysis and photolysis: Rates ...

Baseline ,imidacloprid, results are similar to previously reported hydrolysis studies, in which ,imidacloprid, was only observed to react at pH values >9 (Zheng and Liu 1999; Liu et al. 2006). Thiamethoxam hydrolysis kinetics at high pH were similar to previously reported work (Liqing et al. 2006 ; Karmakar et al. 2009 ; Klarich et al. 2017 ).

Kinetics of photocatalytic removal of imidacloprid from ...
Kinetics of photocatalytic removal of imidacloprid from ...

In this study, the kinetics ,of photocatalytic removal of imidacloprid,, a systemic chloronicotinoid insecticide, from water using two advanced oxidation systems (ZnO(normal)/H 2 O 2 /artificial sunlight and ZnO(nano)/H 2 O 2 /artificial sunlight) were investigated. Moreover, the effects of pH, insecticide concentration, catalyst concentration, catalyst particle size, and water type on the ...

Mass Balance Assessment for Six Neonicotinoid Insecticides ...
Mass Balance Assessment for Six Neonicotinoid Insecticides ...

A few studies have detected imidacloprid in wastewater, showing that treated effluent can inadvertently contribute to neonicotinoid discharge into receiving water bodies. Indeed, a nationwide assessment of United States streams showed a positive correlation between neonicotinoid occurrence and urban land usage but not with agricultural use.

Development and Validation of a Stability-indicating ...
Development and Validation of a Stability-indicating ...

Imidacloprid, slightly degraded to form about 0.1% of DP-3 when neat ,imidacloprid, was light stressed. ,Imidacloprid, was stable upon heating or under ,acidic, conditions, no degradation was observed when neat ,imidacloprid, API was heated at 80°C for 24 h or when ,imidacloprid, was stressed under 0.1 M …

MICROALGAE-BASED BIOREMEDIATION OF WATER …
MICROALGAE-BASED BIOREMEDIATION OF WATER …

imidacloprid, (21), between 1 and 10 (meaning moderate risk) for 2,4-D (2.8), diazinon (4.6) and terbutryn (1.5), and < 1 (meaning low risk) for the remaining compounds diuron, linuron, and MCPA. The PBR treatment yielded variable removals depending on the compound, similar to conventional ,wastewater, treatment plants.

CN102190411B - Treatment method for acidic organic ...
CN102190411B - Treatment method for acidic organic ...

The invention discloses a treatment method for ,acidic, organic chemical ,wastewater, with high COD (chemical oxygen demand) and high sulfate radical concentration, which mainly comprises the following steps: Ca(OH)2 pretreatment, anaerobic treatment, two-stage aerobic treatment, etc. After Ca(OH)2 pretreatment of the ,acidic, organic chemical industry ,wastewater, to remove most of sulfate radicals ...

Comparative Study of Advanced Oxidation Processes to Treat ...
Comparative Study of Advanced Oxidation Processes to Treat ...

Solar photocatalysis by the TiO 2 /Fenton method improved the performance of the photocatalyst at neutral pH for petroleum ,wastewater, without the need to adjust the pH during this treatment. Under ,acidic, conditions, the solar photo-Fenton process is more efficient than solar TiO 2 photocatalysis while it is less efficient under alkaline conditions.

CN102190411B - Treatment method for acidic organic ...
CN102190411B - Treatment method for acidic organic ...

The invention discloses a treatment method for ,acidic, organic chemical ,wastewater, with high COD (chemical oxygen demand) and high sulfate radical concentration, which mainly comprises the following steps: Ca(OH)2 pretreatment, anaerobic treatment, two-stage aerobic treatment, etc. After Ca(OH)2 pretreatment of the ,acidic, organic chemical industry ,wastewater, to remove most of sulfate radicals ...

Neonicotinoid insecticide hydrolysis and photolysis: Rates ...
Neonicotinoid insecticide hydrolysis and photolysis: Rates ...

Baseline ,imidacloprid, results are similar to previously reported hydrolysis studies, in which ,imidacloprid, was only observed to react at pH values >9 (Zheng and Liu 1999; Liu et al. 2006). Thiamethoxam hydrolysis kinetics at high pH were similar to previously reported work (Liqing et al. 2006 ; Karmakar et al. 2009 ; Klarich et al. 2017 ).

Combination of In Situ Feeding Rate Experiments and ...
Combination of In Situ Feeding Rate Experiments and ...

well as highly ,acidic, and basic ones [38]. The aim of the present study was to bioanalytically evaluate the ecotoxicological state of the River Wurm and to determine the ecotoxicological impact of treated ,wastewater, released predominantly by the WWTP Aachen-Soers and the smaller WWTP Eilendorf into the receiving streams. Therefore, in this

Impact of imidacloprid on Daphnia magna under different ...
Impact of imidacloprid on Daphnia magna under different ...

Article Impact of ,imidacloprid, on Daphnia magna under different food quality regimes. Aquatic ecosystems are characterized by fluctuating conditions that have direct effects on aquatic communities, but also indirect influences such as changing the to...

Mass Balance Assessment for Six Neonicotinoid Insecticides ...
Mass Balance Assessment for Six Neonicotinoid Insecticides ...

A few studies have detected imidacloprid in wastewater, showing that treated effluent can inadvertently contribute to neonicotinoid discharge into receiving water bodies. Indeed, a nationwide assessment of United States streams showed a positive correlation between neonicotinoid occurrence and urban land usage but not with agricultural use.

An Overview of the Environmental Applicability of ...
An Overview of the Environmental Applicability of ...

On the other hand, fulvic acids (C 12 H 12 O 9 N, minimum formula disregarding sulfur) have a higher percentage of oxygen and excellent solubility even in very ,acidic, media. Due to their intermediary structural and chemical properties, humic acids (C 10 H 12 O 5 N as minimum formula) are extracted in diluted alkali solutions and present poor solubility in diluted acid [ 2 – 4 ].

Development and Validation of a Stability-indicating ...
Development and Validation of a Stability-indicating ...

Imidacloprid, slightly degraded to form about 0.1% of DP-3 when neat ,imidacloprid, was light stressed. ,Imidacloprid, was stable upon heating or under ,acidic, conditions, no degradation was observed when neat ,imidacloprid, API was heated at 80°C for 24 h or when ,imidacloprid, was stressed under 0.1 M …

Combination of In Situ Feeding Rate Experiments and ...
Combination of In Situ Feeding Rate Experiments and ...

well as highly ,acidic, and basic ones [38]. The aim of the present study was to bioanalytically evaluate the ecotoxicological state of the River Wurm and to determine the ecotoxicological impact of treated ,wastewater, released predominantly by the WWTP Aachen-Soers and the smaller WWTP Eilendorf into the receiving streams. Therefore, in this

MICROALGAE-BASED BIOREMEDIATION OF WATER …
MICROALGAE-BASED BIOREMEDIATION OF WATER …

imidacloprid, (21), between 1 and 10 (meaning moderate risk) for 2,4-D (2.8), diazinon (4.6) and terbutryn (1.5), and < 1 (meaning low risk) for the remaining compounds diuron, linuron, and MCPA. The PBR treatment yielded variable removals depending on the compound, similar to conventional ,wastewater, treatment plants.

Kinetics of photocatalytic removal of imidacloprid from ...
Kinetics of photocatalytic removal of imidacloprid from ...

In this study, the kinetics ,of photocatalytic removal of imidacloprid,, a systemic chloronicotinoid insecticide, from water using two advanced oxidation systems (ZnO(normal)/H 2 O 2 /artificial sunlight and ZnO(nano)/H 2 O 2 /artificial sunlight) were investigated. Moreover, the effects of pH, insecticide concentration, catalyst concentration, catalyst particle size, and water type on the ...

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