Project Green- A Social Initiative towards the environment by Gravita

Gravita successfully started its social initiative to educate people about lead and its hazards, This would be the first social and eco environmental project & initiative from a leading International company.
Being a Lead recycler in India and in other countries, our observation towards recycling is, that the recycling is must for the environment and to reuse the resources, as it has been told that “if we refuse to reuse, it’s the earth that we are abusing”.

So if the recycling is in a systematic manner and gets processed properly, nothing gets affected (Environment, Marine life, People around, Birds, Animals etc.)

So for the same everybody has to be aware about its effects, which is eventually affecting us in indirect way so Gravita took the step ahead and launched PROJECT GREEN on 5th Feb 2011.

What is a Lead Acid Battery?
Battery is a source of Energy, it is becoming a substitute or alternate of power, it is used in two wheelers , four wheelers, Invertors, that means at present , without batteries its hard to think of living, but when it becomes scrap, and we sell it, we are not aware, that it contains Lead metal, Lead oxides & Acid Which is toxic, hazardous and Long-term exposure to even tiny amounts of lead can cause brain and kidney damage, hearing impairment, and learning problems in children. So to protect & to save environment, we should be aware and educate our surroundings about this.

OBJECT OF THE PROJECT:
Our object is to make aware end users of batteries, battery dealers, lead scrap & battery vendors about the lead metal, that this is a hazardous, toxic metal, and anything contained lead like battery, should not dropped or left  in the general public areas or dropped in river, pond or sea,  should not be sold to the people who are not recycling it in eco-environmental manner, because these all situations will be the cause of spoiling environment , and that will cause contamination of lead metal in blood, in water , and its smoke will be in air that we breath.

Secondary Lead Processing

The secondary lead production begins with the recovery of old scrap from worn-out, damaged, or obsolete products and with new scrap. The chief source of old scrap is lead-acid batteries; other sources include cable coverings, pipe, sheet,and other lead-bearing metals. Solder, a tin-based alloy, may be recovered from the processing of circuit boards for use as lead charge.

Prior to smelting, batteries are usually broken up and sorted into their constituent products. Fractions of cleaned plastic (such as polypropylene) case are recycled into battery cases or other products. The dilute sulfuric acid is either neutralized for disposal or recycled to the local acid market. One of the three main smelting processes is then used to reduce the lead fractions and produce Lead bullion.

Most domestic battery scrap is processed in blast furnaces, rotary furnaces, or reverberatory furnaces. A reverberatory furnace is more suitable for processing fine particles and may be operated in conjunction with a blast furnace. Blast furnaces produce hard lead from charges containing siliceous slag from previous runs (about 4.5% of the charge), scrap iron (about 4.5%), limestone (about 3%), and coke (about 5.5%). The remaining 82.5% of the charge is made up of oxides, pot furnace refining drosses, and reverberatory slag. The proportions of rerun slags, limestone, and coke vary but can run as high as 8% for slags, 10% for limestone, and 8% for coke.

The processing capacity of the blast furnace ranges from 20 to 80 metric tons per day (tpd). Newer secondary recovery plants use lead paste desulfurization to reduce sulfur dioxide emissions and generation of waste sludge during smelting. Battery paste containing lead sulfate and lead oxide is desulfurized with soda ash, yielding market-grade sodium sulfate as a byproduct. The desulfurized paste is processed in a reverberatory furnace, and the lead carbonate product may then be treated in a short rotary furnace. The battery grids and posts are processed separately in a rotary smelter.