COPY RIGHTS : TO AVOID COPYRIGHT VIOLATIONS, ALL POSTS ARE SHOWN ALONG WITH SOURCES FROM WHERE ITS TAKEN. PLEASE CONTACT ME IN MY EMAIL SALEEMASRAF@GMAIL.COM , IF YOU ARE THE AUTHOR AND YOUR NAME IS NOT DISPLAYED IN THE ARTICLE.THE UNINTENTIONAL LAPSE ON MY PART WILL BE IMMEDIATELY CORRECTED.

I HAVE SHARED ALL MY PRACTICAL WATER TREATMENT EXPERIENCES WITH SOLVED EXAMPLE HERE SO THAT ANYBODY CAN USE IT.

SEARCH THIS BLOG BELOW FOR ENVO ,COMPACT STP,ETP,STP,FMR,MBBR,SAFF,IRON,ARSENIC,FLUORIDE,FILTER,RO,UASB,BIO GAS,AERATION TANK,SETTLING TANK,DOSING,AMC.

SEARCH THIS BLOG

Thursday, July 26, 2007

Solid State Hard Disk:

 
The current generation of solid state hard disk technology is being put to a wide variety of uses in defense and industrial applications. Where rotating drives may have been the necessary evil ten years ago, a solid state hard disk can now take its place, and offer the highest degree of reliability and best performance. Not having the Achilles heel of moving parts, (ergo, solid state) hard drive storage have virtually no acoustic signature, are extremely light weight, and require much less power than a typical 2.5" or 3.5" HDD.

With all of these advantages, however, one of the highest concern when implementing a solid state hard disk into your application is its durability.
Adtron flash disks are capable of withstanding a higher degree of environmental distress while delivering exceptional write endurance in I/O intensive applications.

In addition to high durability, Adtron solid state hard disks deliver the industry's best sustained read and write rates without using volatile cache memory as a buffer between the host and the solid state media. The use of cache memory introduces a point of failure where data loss can be significant, especially if battery backup is not used. The Adtron ArrayProTM performance engine delivers high performance beyond that typically found in a comparable solid state hard disk product or an HDD.

For example, Adtron's I25FB IDE flash disk passed standard military standards testing conducted by National Technical Systems in Tempe, AZ. Beyond the standard MIL-STD-810F testing, MIL-S-901D tests demonstrate that the I25FB Flashpak flash disk is capable of withstanding shipboard shock loadings which may be incurred during wartime service due to the effects of weapon attacks while at sea. In separate MIL-STD-167-1 tests, the I25FB solid state hard disk proved resilient to internally and externally imposed shipboard vibrations, while subject to dry and damp heat conditions, necessary to operate in a shipboard environment.

In the first U. S. Navy application, the Adtron 16 GByte I25FB solid state hard disk with commercial temperature media is being installed in the Local Control Panels (LOCOPs) by Woodward Governor Company. The LOCOPs are designed to monitor and control the parameters required to start and operate the generator sets used on the CG-47 Ticonderoga class cruisers and DDG-51 Arleigh Burke class destroyers. "Compared to rotating mechanical hard drives, solid state flash disks deliver clear reliability and durability advantages for shipboard applications," stated Andy Cullis, Woodward's Military/Marine Account Manager. "Adtron's flash disks provide a very robust data storage solution, which is critical to meeting the Navy's shock, vibration, temperature and humidity requirements for the LOCOP."

Sunday, July 22, 2007

feeling home sick

1. Our Residence from space,just click the following link

http://www.wikimapia.org/#y=26183126&x=91760441&z=18&l=0&m=a&v=2

 

2. Munu Kekas residence from space, just click the following link

http://www.wikimapia.org/#y=26173758&x=91779109&z=18&l=0&m=a&v=2

 

 
 
 
Saleem Asraf Syed Imdaadullah
Mobile:9899300371
Envo Projects
311/22,Zakir Nagar,
New Delhi-110025 ,India
Email:saleemasraf@gmail.com
blog:www.saleemindia.blogspot.com
Web Site : www.envo.8m.com

Saturday, July 14, 2007

municipal solid waste--waste to energy plant



Considering an average garbage generation per capita per day as 0.450 Kg, we can assume a total garbage generation for a population of 100,000 as 45,000 Kg per day

Proven on wide range of wastes and feedstocks including
  • Livestock and agricultural wastes
  • Biomass
  • Sewage and industrial sludges
  • MSW and catering wastes
  • Food industry wastes
  • Vegetable market waste
  • Restaurant Waste
  • Farm House/Cattle manure waste
  • Slaughter House/Tannery waste
  • Presumed waste
Suitable locations for installation of plant
Hotel premises, army/big establishment canteens (private/ government), residential schools/colleges, housing colonies, religious places / temple trusts, hospitals, hotels, sewage treatment plants, villages, etc.

The Principle:

Add bio degradable Solid waste  into predigestor tank. 
Use of thermophilic microbes for faster degradation of the waste. The growth of thermophiles in the predigestor tank is assured by mixing the waste with hot water and maintaining the temperature in the range of 55-60oC. The hot water supply is from a solar heater. Even one-hour sunlight is sufficient per day to meet the needs of hot water.

After the predigestor tank the slurry enters the main anaerobic tank where it undergoes mainly anaerobic degra-dation by a consortium of archae-bacteria belonging to Methanococcus group.  They produce mainly methane from the cellulosic materials in the slurry.

The undigested lignocellulosic and hemicellulosic materials then are passed on in the settling tank. After about a month high quality manure can be dug out from the settling tanks. Earth worm can be introduced to settling tank to speedup the process.There is no odour to the manure at all. The organic contents are high and this can improve the quality of humus in soil, which in turn is responsible for the fertility.The manure generated is high quality and can be used in fields.This manure can be supplied to farmers at the rate of 4-5 Rs. per Kg. Alternatively municipal gardens and local gardens can be assured of regular manure from this biogas plant.

As the gas is generated in the main tank, the dome is slowly lifted up. This gas is a mixture of methane (70-75%), carbondioxide (10-15%) and water vapours (5-10%). It is taken through GI pipeline to the gas purification unit. Drains for condensed water vapour are provided on line. This gas burns with a blue flame and can be used for cooking as well.
The gas generated in this plant is used for gas lights fitted around the plant. The potential use of this gas would be for a canteen. The purified gas can be fed to bio fuel electric generator to produce electricity. Gas can be bottled and used to run vehicles.




Cost details, saving and payback period from a biogas plant:

The cost details and the savings envisaged from the plant are given in the following table. The life of the plant could be 20-30 years and payback period is 4-5 years.

Capacity (Tons / Day)
Installation Cost (Rs In Lacks)
Monthly Operation and Maintenance Charges (Rs)
Bio gas   Generation 
Organic Manure production (tons /day)
Area Required M2
Power Generated from Bio Gas
Manpower to run plant
1
35
20,000/-
200 cum/day
0.2
450
250 kw/day
4