Water from slaughterhouses has negative consequences on the environment and human health. A significant amount of Slaughterhouse wastewater (SWW) is produced as a result of the marketing, of animal products for human use.
Despite the fact that the ecosystem can handle a certain amount of pollutants through natural degrading processes, when the SWW concentration rises, these mechanisms get overloaded and contamination issues start to emerge.
What are the Effects of slaughterhouse wastewater on the environment?
1: Raw SWW discharge has a negative impact on water quality, especially since it lowers the amount of dissolved oxygen (DO), which could cause aquatic life to perish. In addition, macronutrients like nitrogen and phosphorus can result in eutrophication.
These nutrients are released, which causes an excessive amount of algae growth and subsequent deterioration. As a result of the algae's mineralization and subsequent reduction in DO levels, aquatic life may suffer.
2: SWW may contain substances that are directly hazardous to aquatic life, like chromium and unionised ammonia.
3: The inclusion of surfactants as a result of the washing process is another source of contamination, in the meat processing sector. Due to insufficient SWW treatment, surfactants, important detergent ingredients, may enter the aquatic environment, changing the ecology in both the short and long-term in ways that harm people, fish, and plants.
Environmental effects of slaughterhouse wastewater
The environmental effects of SWW include pathogens that remain in the soil, and continue to multiply as well as pollution from surfactants, nitrate, and chloric anions. Because, SWW pathogens can spread to humans who come into contact with the water body, those locations are unsuitable for drinking, swimming, or irrigation.
Effects of slaughterhouse wastewater on public
The effects of the meat processing industry on the general public's health are related, to the direct contact of human communities with the activities of slaughterhouses, and indirect contact with the environment, which can be harmed by improper management of liquid effluents, solid waste, and offensive odours.
Pathogens can spread quickly in some slaughterhouses due to the unhygienic environment, contaminating the final meat product. The presence of viruses, protozoa, helminthic eggs, and bacteria in SWW has been linked to significant gastrointestinal illnesses, bloody diarrhoea, liver malfunctions, and, in some cases, death in people. Additionally, sewage of animal origin has been found to contain hepatitis A and E viruses. Therefore, SWW must be effectively treated before being released into water bodies, in order to prevent environmental pollution and adverse impacts on human health.
Prior to being released into the environment, all waste types whether liquid, solid, or gaseous, must undergo treatment. Although, the long-term use of recoverable resources is advised as a feasible and practical substitute for conventional energy sources, the costs associated with the application of these technologies will be compensated for, by the decrease in local electricity consumption and the recycling and reuse of by-products.
In order to produce meat more sustainably and cleanly, it is important to take into account the potential of biogas production as an energy source, the usage of fertilizers from nutrient recovery, and the high-quality treated effluents from SWW for water reuse.
As a result, treating meat processing effluents using combined procedures, instead of traditional methods, is now a viable option that is also in compliance with national standards.
Effluent treatment plant manufacturer for slaughterhouses
Netsol Water is a corporation with roots in Greater Noida, and we have been offering India's top water treatment facilities for many years. Our main areas of attention have always been certain sectors, and we have consistently offered our top services to clients across various industries.