Evaluation of K2La2Ti3O10-based coatings for Daphnia magna acute toxicity test of methylene blue degradation in water

Background: Phenol and nitrophenol are common compounds found in different types of industrial wastewater known as serious threats to human health and natural environment. In this study, Daphnia magna was used to evaluate the effectiveness of "baffle fixes film up flow sludge blanket filtration" (BFUSBF) system in elimination of phenolic compounds from water. Methods: D. magna cultures were used as toxicity index of phenol and 2,4-DNP mixtures after treatment by a pilot BFUSBF system which consisted of baffle in anoxic section and biofilm in aerobic sections. Initial concentrations were 312 mg/L phenol and 288 mg/L 2,4-dinitrophenol (2,4-DNP). Results: Bioassay tests showed that D. magna was influenced by the toxicity of phenol and 2,4 DNP mixtures. The comparison between the toxicity of initial phenol and 2,4-DNP mixtures and the output toxic unit (TU) derived from BFUSBF treatment system showed that the TU of the effluent from BFUSBF reactor was much lower than that of the solution that entered the reactor. Conclusion: Based on the acute toxicity test, BFUSBF process could reduce phenol and 2,4-DNP in aqueous solutions. Therefore, it is possible to use BFUSBF process as an appropriate treatment option for wastewaters containing phenolic compounds.

Download Full-text

Water quality. Determination of the inhibition of the mobility of Daphnia magna Straus (Cladocera, Crustacea). Acute toxicity test

10.3403/30213505 ◽

2012 ◽

Cited By ~ 4

Keyword(s):

Water Quality ◽

Acute Toxicity ◽

Daphnia Magna ◽

Toxicity Test ◽

Acute Toxicity Test

Download Full-text

Study of whole effluent acute toxicity test (Daphnia magna) as an evaluation of Ministry of Environment and Forestry Decree No. 3 In 2014 concerning industrial performance rank in environmental management

MATEC Web of Conferences ◽

10.1051/matecconf/201814708005 ◽

2018 ◽

Vol 147 ◽

pp. 08005

Author(s):

Neng Rohmah ◽

Dwina Roosmini ◽

Mochamad Adi Septiono

Keyword(s):

Environmental Management ◽

Acute Toxicity ◽

Daphnia Magna ◽

Toxicity Test ◽

Toxicity Tests ◽

Acute Toxicity Test ◽

Chemical Parameter ◽

Physical Chemical ◽

Industrial Performance ◽

Parameter Monitoring

Only 15% of the industries in Citarum Watershed, specifically in Bandung Regency, West Bandung Regency, Sumedang Regency, Bandung City and Cimahi City, are registered as PROPER industries. They must comply to indicators as set in the Minister of Environment and Forestry Decree No. 3 In 2014 concerning Industrial Performance Rank in Environmental Management, as a requirement to apply for PROPER. Wastewater treatment and management, referencing to Minister of Environment and Forestry Decree No. 5 In 2014 concerning Wastewater Effluent Standards, must be performed to be registered as PROPER industries. Conducting only physical-chemical parameter monitoring of wastewater is insufficient to determine the safety of wastewater discharged into the river, therefore additional toxicity tests involving bioindicator are required to determine acute toxicity characteristic of wastewater. The acute toxicity test quantifies LC50 value based on death response of bioindicators from certain dosage. Daphnia magna was used as bioindicator in the toxicity test and probit software for analysis. In 2015-2016, the number of industries that discharged wastewater exceeding the standard was found greater in non-PROPER industries than in PROPER industries. Based on the toxicity level, both PROPER and non-PROPER industries have toxic properties, however PROPER industries of 2015-2016 is more toxic with LC5096 value reaching 2.79%.

Download Full-text

Determination and Toxicology Studies of Quaternary Ammonium Salts in Solution after Organoclay Processing

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.762.368 ◽

2018 ◽

Vol 762 ◽

pp. 368-372

Author(s):

Matiss Pals ◽

Ieva Putna-Nimane ◽

Juris Kostjukovs ◽

Jūlija Karasa ◽

Solvita Kostjukova ◽

...

Keyword(s):

Acute Toxicity ◽

Daphnia Magna ◽

Quaternary Ammonium ◽

Toxicity Test ◽

Quaternary Ammonium Salts ◽

Ammonium Salts ◽

Acute Toxicity Test ◽

Innovative Materials ◽

Tof Ms

Organoclays have potential to be used as additives in various facade paints and other finishing materials. Such new innovative materials must be rigorously tested for them to have no impact on environment. Focus of this study was to develop HPLC – TOF/MS method for determining quaternary ammonium salts in various material washing solutions and to determine organoclay toxicity by performing acute toxicity test on Daphnia magna. From the obtained results, it was possible to conclude that organoclays can be safely used as additives in various materials with low or no impact on environment. We determined that organoclays are significantly less toxic then some quaternary ammonium salts on its own.

Download Full-text