Skip to main content

Solid Waste

 SOLID WASTES 



  • Solid wastes refer to everything that goes out in trash. 
  • Municipal solid wastes are wastes from homes, offices, stores, schools, hospitals, etc., that are collected and disposed by the municipality. 
  • The municipal solid wastes generally comprise paper, food wastes, plastics, glass, metals, rubber, leather, textile, etc. 
  • Burning reduces the volume of the wastes, although it is generally not burnt to completion and open dumps often serve as the breeding ground for rats and flies. 
  • Sanitary landfills were adopted as the substitute for open-burning dumps. 
  • In a sanitary landfill, wastes are dumped in a depression or trench after compaction, and covered with dirt everyday. 
  • Landfills are also not really much of a solution since the amount of garbage generation specially in the metros has increased so much that these sites are getting filled too. 
  • Also there is danger of seepage of chemicals, etc., from these landfills polluting the underground water resources. 
  • A solution to all this can only be in human beings becoming more sensitive to these environment issues. 
  • All waste that we generate can be categorised into three types – 

(a) bio-degradable, 

(b) recyclable and 

(c) the non-biodegradable. 

  • It is important that all garbage generated is sorted. 
  • What can be reused or recycled separated out; our kabadiwallahs and rag-pickers do a great job of separation of materials for recycling. 
  • The biodegradable materials can be put into deep pits in the ground and be left for natural breakdown. 
  • That leaves only the non-biodegradable to be disposed off. 
  • The need to reduce our garbage generation should be a prime goal, instead, we are increasing the use of non-biodegradable products. 
  • Just pick any readymade packet of any ‘good quality’ eatable, say a biscuit packet, and study the packaging – Note that at least one layer is of plastic. 
  • We have started packaging even our daily use products like milk and water in polybags!! In cities, fruits and vegetables can be bought packed in beautiful polysterene and plastic packaging –  Contribute heavily to environmental pollution. State Governments across the country are trying to push for reduction in use of plastics and use of eco-friendly packaging. 
  • We can do our bit by carrying cloth or other natural fibre carry-bags when we go shopping and by refusing polythene bags.

Comments

Popular posts from this blog

HUMAN CIRCULATORY SYSTEM

😎 Human Circulatory System 😎 Human circulatory framework, additionally called the blood vascular framework comprises of a strong chambered heart, an organization of shut fanning veins and blood, the liquid which is circled.  Heart, the mesodermal determined organ, is arranged in the thoracic hole, in the middle of the two lungs, marginally inclined to one side. It has the size of a held clench hand. It is ensured by a twofold walled membranous sack, pericardium, encasing the pericardial liquid.  Our heart has four chambers, two moderately little upper chambers called atria and two bigger lower chambers called ventricles.  A slight, solid divider called the interatrial septum isolates the privilege and the left atria, while a thick-walled, the between ventricular septum, isolates the left and the correct ventricles.  The chamber and the ventricle of a similar side are likewise isolated by a thick stringy tissue called the atrio-ventricular septum.  Notwithstand...

RADIOACTIVE WASTES

  RADIOACTIVE WASTES  Initially, nuclear energy was hailed as a non-polluting way for generating electricity.  Later on, it was realised that the use of nuclear energy has two very serious inherent problems.  The first is accidental leakage, as occurred in the Three Mile Island and Chernobyl incidents and the second is safe disposal of radioactive wastes.  Radiation, that is given off by nuclear waste is extremely damaging to biological organisms, because it causes mutations to occur at a very high rate.  At high doses, nuclear radiation is lethal but at lower doses, it creates various disorders, the most frequent of all being cancer.  Therefore, nuclear waste is an extremely potent pollutant and has to be dealt with utmost caution.  It has been recommended that storage of nuclear waste, after sufficient pre-treatment, should be done in suitably shielded containers buried within the rocks, about 500 m deep below the earth’s surface.  However,...

RESPIRATORY ORGANS

😀RESPIRATORY ORGANS 😀 👉This cycle of change of O2 from the weather with CO2 introduced via way of means of the telephones is referred to as breathing, commonly referred to as breath .   👉 Uncommon vascularised systems referred to as gills ( branchial breath ) are used by the bulk of the amphibian arthropods and molluscs though vascularised sacks referred to as lungs (aspiratory breath) are used by the earthly systems for the buying and selling of gases. 👉 Among vertebrates, fishes use gills whilst creatures of land and water, reptiles, winged animals and heat blooded creatures breathe thru lungs. 👉 Creatures of land and water like frogs can breathe thru their soggy skin ( cutaneous breath ) moreover.  Human Respiratory System   We have more than one outer nostrils establishing out over the higher lips.  It activates a nasal chamber thru the nasal phase.  The nasal chamber opens into the pharynx , a section of that is the primary access for meals and air....