- 22 December, 2024
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.png "Mr. V. M. SHINDE")
| Designation: |
Sr.Technical Officer(3)
|
| Email Id: | vm_shinde[at]neeri[dot]res[dot]in |
| Qualification: |
A.M.I.E, Dip. In Ele & Telcom, Post Dip. (Comp Tech.) |
| Specialization: |
Instrumentation
|
| Address: |
Sub-Verticals 5A : SOPHISTICATED ENVIRONMENTAL ANALYTICAL FACILITY, NEERI Nagpur
|
| Biodata: |
| Sr. No. | Publication Name |
|---|---|
| 1 |
A Proposed Method to Minimize the Global Warming and Environmental Pollution
|
| 2 |
Evaluation of the effect of size reduction and thermal treatment on metal extraction from PCBs of mother board and digital video drive of desktop PC
The study aims at evaluating the effect of particle size and thermal treatment on printed circuit boards (PCBs) of Mother Board (MB) and DVD on metal extraction. Results show around 90-95% (w/w) and 35-40% (w/w) of total Al and Cu respectively, in CPU could be recovered by systematized disassembly. Remaining embedded Al and Cu require metallurgical or hydro-metallurgical processing. Cu extraction increases with size reduction. Thermal treatment of MB-PCB shows reduction in Cu extraction (23-38%) for all sizes in comparison without thermal treatment, while DVD-PCB showed surge in extraction after thermal treatment (41-141%) in comparison without thermal treatment. |
| 3 |
Dynamics of effluent treatment plant during commissioning of activated sludge process unit"
|
| 4 |
Dynamics of effluent treatment plant during commissioning of activated sludge process unit
Industrial effluent treatment plants (ETPs) are very important in protecting the environment and different life forms from harmful industrial waste. Hence, the efficiency of ETPs must be regularly monitored, particularly after major repair or replacement work. Present study evaluated the performance of an ETP over a period of 4 months, during which aeration tank (T1) of the activated sludge unit was replaced with a new one (T2). System had to be maintained operational during this transition, which warranted close monitoring of the system performance due to the daily load of hazardous industrial wastewater. Analysis showed that the raw wastewater was highly variable in composition and contained many hazardous organic and inorganic pollutants, such as heavy metals, bisphenol A and cyanoacetylurea. It showed significant toxicity against HepG2 cells in vitro. However, the ETP was found to successfully treat and detoxify the wastewater. Denaturing gradient gel electrophoresis (DGGE) analysis showed large temporal fluctuations in the ETP microbial community, which is consistent with the variable composition of wastewater. It indicated that functional stability of the ETP was not associated with stability of the microbial community, probably due to high microbial biodiversity and consequently high functional redundancy. In conclusion, the CETP showed consistent level of detoxification and microbial community dynamics after switching to T2, indicating successful development, acclimatization and commissioning of T2. |
View Biodata [0.18 MB]