Ata Rafiee

11 Questions 91 Answers 0 Followers

Questions related from Ata Rafiee

Which methods could be used to determine the specific surface of fixed-bed and moving-bed packing media?

The methods/devices which could be used to determine the nominal and effective specific surface of fixed-bed and moving-bed packing media which have been used for biological wastewater treatment...

21 February 2018 9,089 2 View

Compost vs. Fertilizers: What's the Difference?

In order for a plant to grow and thrive, it requires Carbon, hydrogen, oxygen, nitrogen, phosphorus and potassium. The former three are easily available from air, water and other sources, while...

04 November 2017 668 12 View

Does anyone know the diferences between "effect" and "impact?

What are the differences between effect and impact in the environmental and health sciences context?

21 October 2017 4,671 26 View

Does anyone familiar with nitrogen-based biocarriers which have been used in the MBBR process?

Dear respectful researchers Could you please provide me some information regarding the nitrogen-based bio-carriers which have used in the MBBR process. What are the main differences and possible...

22 August 2017 8,214 3 View

What are the most limitations and disadvantages of Membrane bioreactor (MBR) process ?

Dear Respectful researchers I need the information regarding to limitations and disadvantages of the MBR process in treating high industrial strength wastewater. There are some limitations such as...

13 August 2017 3,832 10 View

Does anyone knows the optimum condition for start-up MBBR process?

Dear Collegues I need the details condition for the start-up of the MBBR process for optimum situation, such as N and P concentrations, suitable feeding for microorganisms, BOD/COD ratio, F/M,...

07 August 2017 4,116 1 View

Solid waste generation rate and characterizations in organizations

Dear researchers Does anyone knows the solid waste generation rate (per employee) in the organizations (for example with 150-200 employees) and the characterizations of produced waste in this...

24 July 2017 6,394 10 View

Biomonitoring equivalents for BTEX

I am searching for papers which addressed biomonitoring equivalents for BTEX health risk assessment in the occupational context. I would appreciate if you could provide me with any advice or...

24 June 2017 5,670 3 View

Does anybody know the net landfill space saving during the one ton PET recycling?

Dear researchers I am studying the environmental and economic benefits of PET recycling. is there any related papers which conducted in this context. I want to know the net landfill space saving...

02 May 2017 222 6 View

Which cost-benefit or economic analysis could be useful for investigation the recycling potential of the municipal solid waste?

Dear researchers, I am conducting a study on investigation the recyclable fraction of Municipal Solid Waste (MSW).We investigated the recyclable fractions of MSW such as PET, glass, metals,...

10 April 2017 1,112 17 View

The Importance of using biomonitoring approach in human health related projects.

Human biomonitoring (HBM) is a tool of health-related environmental monitoring with which populations are examined for their exposure to pollutants from the environment. The results are also...

01 January 1970 8,497 4 View