Ijraset Journal For Research in Applied Science and Engineering Technology
Authors: Ahwaan Nayak
DOI Link: https://doi.org/10.22214/ijraset.2022.39939
Certificate: View Certificate
I. INTRODUCTION
Industrialisation is at its peak. In the present scenario solid and hazardous wastes generated from the industries have resulted in a great threat and concern for the environment, because their improper disposal, without proper engineering methods can put a very disastrous impact on the environment and ecology by polluting air, water and soil. As the industries are present near the sea, the marine ecosystem and aquatic life is also quite much vulnerable to get affected by the pollution. Hence the study focused on overall industrial pollution impacts on the ecology and environment with respect to solid and hazardous waste management and treatment. Hence proper planning methods should be implemented for suitable and efficient disposal and management of solid wastes
Solid and hazardous waste management is a term that is used to refer to the process of collecting and treating solid wastes. It also offers solutions for recycling items that do not belong to garbage or trash. As long as people have been living in settlements and residential areas, garbage or solid waste has been an issue. Waste management is all about how solid waste can be changed and used as a valuable resource. Solid waste management should be embraced by each and every household including the business owners across the world. Industrialization has brought a lot of good things and bad things as well. One of the negative effects of industrialization is the creation of solid waste.
Industries are known to be one of the biggest contributors of solid waste. They include light and heavy manufacturing industries, construction sites, fabrication plants, canning plants, power and chemical plants. These industries produce solid waste in form of housekeeping wastes, food wastes, packaging wastes, ashes, construction and demolition materials, special wastes, medical wastes as well as other hazardous wastes. The solid and hazardous wastes can mix or get discharged into water and flow into natural water bodies even due to rain causing water pollution, improper landfills can cause soil pollution and burning of wastes can cause air pollution.
II. METHODS OF SOLID & HAZARDOUS WASTE MANAGEMENT
A. Landfill
This is the most popular solid waste disposal method used today. Garbage is basically spread out in thin layers, compressed and covered with soil or plastic foam. Modern landfills are designed in such a way that the bottom of the landfill is covered with an impervious liner which is usually made of several layers of thick plastic and sand. This liner protects the ground water from being contaminated because of leaching or percolation. When the landfill is full, it is covered with layers of sand, clay, top soil and gravel to prevent seepage of water.
B. Incineration
This method involves burning of solid wastes at high temperatures until the wastes are turned into ashes. Incinerators are made in such a way that they do not give off extreme amounts of heat when burning solid wastes. This method of solid waste management can be done by individuals, municipalities and even institutions. The good thing about this method is the fact that it reduces the volume of waste up to 20 or 30% of the original volume.
C. Recovery and Recycling
Recycling or recovery of resources is the process of taking useful but discarded items for next use. Traditionally, these items are processed and cleaned before they are recycled. The process aims at reducing energy loss, consumption of new material and reduction of landfills.
E. Composting
Due to lack of adequate space for landfills, biodegradable yard waste is allowed to decompose in a medium designed for the purpose. Only biodegradable waste materials are used in composting. Good quality environmentally friendly manure is formed from the compost and can be used for agricultural purposes.
F. Pyrolysis
This is method of solid waste management whereby solid wastes are chemically decomposed by heat without presence of oxygen. This usually occurs under pressure and at temperatures of up to 430 degrees Celsius. The solid wastes are changed into gasses, solid residue and small quantities of liquid. In summary, proper solid waste management is an integral part of environmental conservation that should be observed by individuals and companies globally. This will keep the environment clean and reduce health and settlement problems.
G. Sale
Selling the wastes to authorized bodies (may be through auction) which can be recycled or used for any other purpose or can be used as a raw material for any other industry. Hence, for the appropriate management of solid, hazardous and other wastes an occupier should first follow the following steps: prevention, minimization, reuse, recycle, recover, safe disposal.
H. Study Area
Paradeep is a major sea port of India present in Jagatsinghpur district in eastern state of Odisha, famous for trade activities along with an emerging industrial corridor of eastern India. The enchanting beauty of the sea, a wonderful sea beach & marine drive, beautiful creeks, estuaries and evergreen forests of estuarian islands of the river Mahanadi, make the place a tourist attraction too.
As per 2011 India census, Paradeep had a population of 73,633. Males constituted 58% of the population and females 42%, due to rapid migration of young industrial workers to the area. Paradeep has an average literacy rate of 73%, higher than the national average of 59.5%: male literacy is 79%, and female literacy is 65%.
The rapid growth is attributed to the migration of workers following the expansion of the port, and establishment of major industrial projects, like Indian Oil's Paradeep Refinery, PPL & IIFCO.
III. METHODOLOGY
The basic methodology included primary survey by visiting each concerned major polluting industries at Paradeep in person, interviewing the officials in charge of the environmental section. Touring the sites within the industries such as solid & hazardous wastes disposal units, water treatment plants, effluent treatment plants, air quality monitoring systems, landfills etc., collecting data about the details of the plant such as its area, green cover maintained, its category according to pollution and buffer zone. then information regarding the environmental aspects were studied and datas collected such as measures taken by the industries to reduce the intensity and effects of pollution, raw materials used by the industry, type of waste and amount generated per day, per month and per year, disposal methods, analysing the data and comparing it with the government specified norms and then preparation and presentation of the report to the project guide and officer at OSPCB.
IV. FIELD STUDY AND OBSERVATIONS / DISCUSSIONS
Field study included the primary filed survey and industrial visits to collect data on the environmental aspects, that is on pollution caused due to solid and hazardous/toxic wastes from industries. Their improper disposal, without proper engineering methods can put a very disastrous impact on the environment and ecology by polluting air, water and soil. As the industries are present near the sea , the marine ecosystem and aquatic life is also quite much vulnerable to get affected by the pollution.
Name: Paradeep Phosphates Limited (PPL) Area: 2282.40 Acres
PPL is situated at the Port town of Paradeep in Jagatsinghpur District of Orissa and was initially established to manufacture Di-ammonium Phosphate (DAP) fertilizer in four streams. Commercial production started in the year 1986. PPL is one of the largest Phosphatic Fertilizer manufacturers in India.
Production: Sulphuric acid from 2000 TPD to 2400 TPD and fertilizers from 2400 TPD to 5000 TPD
Category: RED , Highly polluting industry.
Influence / Buffer zone radious: 10 kilometers , Includes about 52 villages
The settlements and biosystem present in the influence or buffer zone of any industry is always under the vulnerability of getting maximum affected by any environmental pollution, industrial failure or mishaps , hence much care is taken while discharging the wastes and pollutants from any plant. If any kind of public complaint is received immediate action and inspection is done. Provisions for compensation is made.
According the past records a fertilizer company named OSWAL in Paradeep came into news because of discharge of hazardous/toxic emissions from the industry resulted in the destruction of agricultural fields in the buffer area which brought severe damage to economy , livelihoods and property.
A. Raw Materials used by the Industry
B. Environmental Aspects
PPL has a well-organized Environment department to take care of various environmental issues of the industry, which includes but not limited to compliance of statutory provisions of environment legislations. Operation of STP, ETP, solid waste management, pollution control measures & regular monitoring of environmental parameters and coordination with different departments in the plant for effective environmental management. PPL is having a well-equipped laboratory to carryout day – to – day analysis of environmental parameters. PPL has installed a Weather Station to monitor ambient temperature, wind speed, wind direction, rain fall and relative humidity.
Green cover maintained : 37% i.e. 854 Acres
Source of water for the industry : Taladanda canal ( 15000 M3 per day use by the industry )
Solid & hazardous waste management :
The solid waste generated in PPL can be classified into solid waste from the processing plant and domestic refuse from the township colony. Major Solid wastes from the plant are by-product phosphogypsum, sulphur muck, spent catalyst, phosphoric acid tank sludge, ETP sludge. Effective arrangements are made in every unit in the factory for the treatment of wastes and effluents due to the manufacturing process carried on therein so as to render them harmless before disposal.
By-Product Phosphogypsum : Rock phosphates are treated with sulphuric acid producing phosphoric acid and calcium sulphate. The slurry from the reactor is routed through the filtration unit where calcium sulphate is obtained as a filter cake. This is called by-product phosphogypsum. It is slurried with recycle pond water and pumped to the gypsum pond. There is two compartments in gypsum pond. It is located within the factory area. The area occupied by the pond including perimeter ditches and dykes is 77 hectares. The pond is provided with compacted embankments. The supernatant flows out of the pond and is collected in a perimeter ditch. From the perimeter ditch, the supernatant is pumped and reused in the process according to the requirement. It is utilized to slurry the gypsum and also to wash the filter cake. The quantity of phospho gypsum generated at present is 8000 tones / day. Considerable quantity of it is sold to outside parties for cement manufacturing and also as calcium supplement. PPL is planning to put a granulation plant to utilize phosphogypsum. Initially the plant will be set up as a trial unit.
Spent Catalyst: Spent vanadium catalyst is generated occasionally from the sulphuric acid manufacturing process. Spent catalyst (V2O5) is being stored in a covered shed inside the plant premises in ETP area and finally will be sold to authorized reprocessor.
Sulphur muck is obtained during melting of sulphur ore in melting pit and subsequent filteration of molten sulphur. The impurities are obtained as residue. Daily generation of sulphur muck is 5 Metric Ton. It is used in the DAP plant as filler.
ETP sludge is produced during the wastewater treatment facilities. About 1500 ton of sludge is generated per annum. Sulphur muck and ETP sludge are stored in a covered shed and reused in the process.
Phosphoric acid sludge removed from the storage tanks are being utilized in DAP plant or pumped to gypsum pond. The tanks are cleaned once in two years.
Wastes generated and disposal for a ordinary year is given in the following table:
Gypsum is no more considered as a waste as it is being sold to cement industries.
Engineering Landfills along with leachate technology are present within the industrial boundary so that the solid and hazardous wastes are not carried or discharged out of it. The treated leachate can only be disposed off to the inland surface water, landfills or into public sewers according to the government formulated norms. hazardous wastes are usually stored, sold , recovered , recycled , transferred, pre-processed or co processed. Where standard operating guidelines are not available for a specific utilisation and disposal the approval has to be sought from the CPCB.
V. EFFLUENT TREATMENT IN PPL
The plant focuses on the zero or minimum discharge of water, the waste water generated from entire plant is completely recycled into the system whereas of CPP is separately treated in the neutralization tank, which can be reused. Total waste water generated is about 6000m3/day. Occasional leakages / overflow from PAP, DAP plant, offsites and entire effluent from SAP are taken to ETP for treatment. The said ETP has been installed based on the feasibility study carried out by NEERI, Nagpur and comprises of a collection sump, grit chamber, oil & grease trap, equalization basin and physio-chemical treatment units like clarifloculators, thickener, filter press etc. ETP process is based on double stage lime treatment. The treated effluent is neutralized using sulphuric acid before discharge.
Name: ESSAR Area: 110 acres
The ESSAR is a 6 MTPA pellet plant is located at Paradeep in the iron ore-rich state of Odisha . The plant has an assured supply of high-quality iron ore from the beneficiation plant at Dabuna, Orissa. The Paradeep Pellet plant will add another 6 MTPA to its capacity in the next financial year, bringing Essar’s total pelletization capacity at Paradeep to 12 MTPA.
Catergory: RED
Influence / buffer zone radius : 5-7 kilometres
The settlements and biosystem present in the influence or buffer zone of any industry is always under the vulnerability of getting maximum affected by any environmental pollution, industrial failure or mishaps , hence much care is taken while discharging the wastes and pollutants from any plant. If any kind of public complaint is received immediate action and inspection is done. Provisions for compensation is made.
According the past records , pollution at Paradeep came into news because of the emissions of hazardous gases and lot of dust from any industry resulted in the many severe health issues and loss of life.
Production: Iron Pellets
Raw materials used by the industry: Iron ore
Environmental aspect :
Green cover maintained: 36% vegetation out of the total plant area
Source of water for the industry: the slurry water ( 7:3 ratio of the iron ore + water slurry )
Solid / hazardous waste management
The major and only waste generated by the industry is the waste oil
Besides the waste oil the major issue is the dust generated from the industry but thankfully the dust is not being considered as a waste anymore as maximum portion the dust is being regained back and reused by the industry, because the dust generated from the plant contains iron only, hence they collect it back hence the anticipated pollution caused to the dust emissions is largely minimized.
The plant has no landfill as no such wastes is produced except the waste oil.
VI. ANALYSIS AND RESULTS
A. Advantages and Disadvantages Of The Industrial Development
1. The disadvantages of Industrialization are discussed below:
a. The immediate result is in the gradual disappearance of many natural resources, the pollution of land, water and air.
b. The increase in vehicular traffic, the incessant working of machines in factories have brought in traffic congestion and pollution.
c. The general dirty and unhealthy conditions in and around the industrial sites have affected human health and happiness. Diseases, unheard of before, are spreading far and wide.
d. There have been instances of child labor in factories.
e. The exploitation of the poor by the rich has increased simultaneously the crime-rate, isolation and sense of loneliness.
f. The gradual displacement of manpower in industries by installation of machineries is ultimately leading to unemployment.
g. People from the nearby backward areas and villages are heading or migrating towards to industrial towns for occupation and better livelihood but results in formation of slum and those backward areas remain underdeveloped and the primary activities such as farming reduces.
h. Increase in water, air, dust, noise and soil pollution leading to many social and environmental hazards and global threats of ecological imbalances.
i. Inflation sets in, the value of money goes down and the poor working class becomes poorer. Class conflicts, strike, and then lockouts cause hardship and unrest. Society faces their impact in various ways.
j. Large scale heavy industries lead to a sharp fall in the number of cottage industries and their gradual disappearance. Regional and local artisans and workers of various trades and professions suffer a great deal.
2. The advantages of industrialization are given below:
a. The growth of industries has resulted in large scale production of goods which are available to the consumer to meet their demands at cheaper rates.
b. There is saving of time and labor.
c. Industrialization has resulted in a considerable rise the standard of living of the people.
d. A number of substitutes in consumer goods are available. The customer gets wide variety of choices.
e. There are means to control and check the colossal wastage of human energy that can be used otherwise.
f. Industrialization creates new job opportunities, leading to the removal of poverty to a great extent.
g. Industrialization has also resulted in the development of new modes of transport making quick export and import possible, bringing the world closer.
B. Issues With Respect To Pollution And Solid/Hazardous Waste Generation
Industries, in general where multifarious activities are involved during construction, erection, testing, commissioning, operation and maintenance, the men, materials and machines are the basic inputs. Along with the boons, the industrialization generally brings several problems like pollution, occupational health and safety hazards. The various issues in an industry can be ;
C. Recommendations And Possible Interventions
An industrial planner has to properly plan and take the steps to minimize the impacts of industrialization and to control pollution & ensure appropriate waste management occupational health, safety including fire plans. For the management of solid, hazardous and other wastes an occupier should first follow the following steps : prevention , minimization , reuse , recycle , recover , safe disposal. Hence the various proposals and recommendations can be as follows:
SOURCES
Odisha State Pollution Control Board
Paradeep Phosphates Limited,
ESSAR Steel
Primary survey
The objective of training internship is to get into a practical exposure to live planning projects and experience working environment. I am privileged of getting the same at the office of SPCB, Bhubaneswar and CMCE Paradeep. The current summer training internship course has been a whole new experience gained. My study and assignments mostly dealt with industrial pollution and solid/hazardous waste management which included; primary survey, interaction and interviews for data collection, GIS based software application & mapping, analysis, proposal formulation and report presentation. Overall, it was a good internship experience and I am thankful to all the staff members and officials, especially the mentors who constantly supported through their invaluable guidance and advices. I am thankful to SPCB for giving me this opportunity. Looking forward for further enclosure with the authority. Through my study the ideas I concluded is that; the time has come to put emphasis on a planned and balanced industrialization keeping in view the preservation of environment, so that sustainable development would be possible. It would be a move in the right direction. The development of science and technology has resulted in the growth and spread of Heavy Industries. Human progress now-a-days is measured in terms of industrial potentialities and prosperity. But it is unfortunate that we have not yet realized the evils of industrialization due to unplanned growth in our time. The ecological imbalances and greenhouse effects have posed serious threat to human kind and its survival is questioned. Man must learn to accept industry not as an end in itself but as a means to the end of social, economic and environmental well-being and up-liftment. Industries, in general where multifarious activities are involved during construction, erection, testing, commissioning, operation and maintenance, the men, materials and machines are the basic inputs. Along with the boons, the industrialization generally brings several problems like pollution, occupational health and safety hazards it can be concluded that most of the industries have taken adequate measures regarding the control of pollution and meeting the norms and standards formulated by the government but still lack in many important and vital aspects such as; collecting the wastes in storm water runoff , to have rapid action force of their own , own meteorological and geology department , proper functioning of effluent treatment plants, separate and individual STPs of respective industries besides township, use of the gypsum for laying of roads , using the heat energy for the production of electricity, to have ecological parks developed by own and its proper maintenance etc. , reduce , recycle , reuse and recover should be the prime aim and motive of the industries to attain a significant control over various anticipated and expected hazards and issues in a plant.
Copyright © 2022 Ahwaan Nayak. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Paper Id : IJRASET39939
Publish Date : 2022-01-15
ISSN : 2321-9653
Publisher Name : IJRASET
DOI Link : Click Here