Heat is the thermal energy transit from one
system to another. The thermal energy can originate from any kind of energy
according to the first law of thermodynamics. Transfer of heat is due to unique
property of matter, temperature, and is governed by second law of
thermodynamics, which dictates that free flow of heat is possible only from a
body of higher temperature to that at a lower temperature.
All heat transfer processes, therefore, involve the transfer of energy and obey
the first as well as the second law of thermodynamics. The energy in transit
cannot be measured or observed directly, but the effects it produces can be
observed and measured. From our viewpoint, the determination of the rate of heat
transfer needs special consideration.
The transport of heat energy from one region to another occurs by any (or a
combination) of similar methods. In literature such three methods of heat
transmission are recognized by the terms conduction, convection and radiation
respectively.
If the flow of heat is a result of transfer of internal energy from one molecule
to other, the process is called conduction. Through solids, this is the only
possible mode of heat transmission. In liquid and gases, however, the molecules
are no longer confined to a certain point but constantly change their positions
even if the substance is at rest. The heat energy is transported along with the
motion of these molecules from one region to another. This process is called
convection. All solid bodies as well as liquids and gases have a tendency of
radiating thermal energy in the form of electromagnetic waves and of absorbing
similar energy emerging from the neighboring bodies. This type of heat transport
is known as thermal radiation.
In industrial processes, heat transfer may occur due to one or due to a
combination of more than one of these three modes of transport.
Industrial Water Treatment , Industrial Wastewater Treatment
Industrial
Water Treatment can be classified into the following categories:
Boiler water
treatment
Cooling
water treatment
Wastewater
treatment
Water
treatment is used to optimize most water-based industrial processes, such as:
heating, cooling, processing, cleaning, and rinsing, so that operating costs and
risks are reduced. Poor water treatment lets water interact with the surfaces of
pipes and vessels which contain it. Steam boilers can scale up or corrode, and
these deposits will mean more fuel is needed to heat the same amount of water.
Cooling towers can also scale up and corrode, but left untreated, the warm,
dirty water they can contain will encourage bacteria to grow, and Legionnaires'
Disease can be the fatal consequence. Domestic water can become unsafe to drink
if proper hygiene measures are neglected.
In many
cases, effluent water from one process might be perfectly suitable for reuse in
another process somewhere else on site. With the proper treatment, a significant
proportion of industrial on-site wastewater might be reusable. This can save
money in three ways: lower charges for lower water consumption, lower charges
for the smaller volume of effluent water discharged and lower energy costs due
to the recovery of heat in recycled wastewater.
Drinking Water Treatment and Drinking Water Plants
Drinking Water
Drinking
water is water that is intended to be ingested by humans. Water of sufficient
quality to serve as drinking water is termed potable water whether it is used as
such or not. Although many fresh water sources are utilised by humans, some
contain disease vectors or pathogens and cause long-term health problems if they
do not meet certain water quality guidelines. Water that is not harmful for
human beings is sometimes called safe water, water which is not contaminated to
the extent of being unhealthful. The available supply of drinking water is an
important criterion of carrying capacity, the population level that can be
supported by planet Earth.
As of the
year 2006 (and pre-existing for at least three decades), there is a substantial
shortfall in availability of potable water, primarily arising from
overpopulation in lesser developed countries. As of the year 2000, 37 percent of
the populations of lesser developed countries did not have access to safe
drinking water. Implications for disease propagation are significant. Many
nations have water quality regulations for water sold as drinking water,
although these are often not strictly enforced outside of the developed world.
The World Health Organization sets international standards for drinking water. A
broad classification of drinking water safety worldwide could be found in Safe
Water for International Travelers.
Typically
water supply networks deliver a single quality of water, whether it is to be
used for drinking, washing or landscape irrigation; one counterexample is urban
China, where drinking water can be optionally delivered by a separate tap. In
the United States, public drinking water is governed by the Safe Drinking Water
Act (SDWA). Among other provisions, it protects the right of employees to report
potential violations. 42 U.S.C. 300j-9(i). Within 30 days of any retaliation, a
whistleblower can file a complaint with the Occupational Safety and Health
Administration (OSHA).
The standard
test for bacterial contamination is a laboratory analysis of coliform bacteria,
a convenient marker for a class of harmful fecal pathogens. The presence of
fecal coliforms (like Escherichia coli) serves as an indication of contamination
by sewage.
Global
availability
Due to the
presence of overpopulation, which has been prevalent as early as 1975, adequate
water resources do not exist to provide safe drinking water for all people. The
issue of overpopulation is compounded by the realities of wealth distribution
and regional differences in fresh water storage capacity. Africa has been the first region to suffer pronounced widespread inadequate
potable water, but by around 2015, Asia will
certainly own the distinction of greatest water shortfall, due to the expanding
population of the continent.
According to
the United Nations over 1.1 billion people are currently without safe drinking
water. In highly developed countries such as Singapore, United Kingdom,
Australia, USA, Sweden, Denmark, Andorra, Finland, Canada and Mauritius,
virtually 100 % of the populations have access to potable water. The majority of
the people in the world who have unsafe water are concentrated in a few large
countries including China, Pakistan, Nigeria, Indonesia and Bangladesh.
Water Treatment Chemicals & Service Providers in India, Singapore
Welcome
Welcome to official website of Albatross Fine Chem Ltd, an ISO 9001: 2000 water treatment service provider
Water Treatment Chemicals
Albatross has the expertise to help you reduce operating costs, increase efficiency and protect your valuable equipment. Our offerings include:
We have developed a full line of proprietary formulations for the waterside of your operations.Our products include waterside chemicals for cooling and boiler water applications such as corrosion inhibitors, dispersants, scale control agents, biocides, oxygen scavengers, precipitating agents, solubilisers, and neutralizing/film forming amines.In addition, we have developed a series of chemicals to improve boiler combustion efficiency to prevent high temperature-zone corrosion, and to impede the formation of fireside residue deposit. In addition to traditional treatment programs, albatross offers alternative solutions encompassing new technology, which will not only solve your cooling water problems, but will also allow you to meet your environment discharge objectives
We back our water treatment chemicals with vast field experience and deep knowledge of how every treatment will affect your process. Our people will apply the right chemical solutions to help you deliver the maximum reliability and performance
Albatross Book Store
We have published books and training programs, suitable for water treatment professional, water treatment users and water treatment consultants. All the nine books are focused on boiler water treatment and cooling water treatment.
