Case Study: Zero Sludge Production of a Slaughterhouse’s Wastewater Treatment Plant.

The slaughterhouse produces high concentration wastewater (EC, 2005), which contains high levels of biodegradable organic matter such as feces, undigested food, blood, floating matter (Jian and Zhang, 1999). The slaughterhouse wastewater constituents are sufficient for biological treatment from the viewpoint of organic strength, inorganic elements, alkalinity and pH (Massé and Masse, 2000). Design criteria for slaughter factory wastewater treatment plants have been widely published (Travers & Lovett, 1984; Li et al., 2008). Generally, the composition of slaughterhouse wastewater greatly depends on manufacturing process, byproduct recovery and washing procedure (Pozo et al., 2003).

Residues, biosolids, spoilage, sewage, waste water byproducts, compost: sludge and sludge products have many names. Sludge is sometimes a solid matter, sometimes a liquid substance produced in a wastewater treatment facility, and it is used as a fertilizer in fields, gravel pits and forestry areas throughout the area. Sludge contains measurable pollutants such as heavy metals, dioxins and other toxic chemicals. Sludge also contains pathogens - human bacteria, bacteria, viruses and parasites. Odor of sludge: The smell of sludge is not just a nuisance, it is a threat of public health related to respiratory problems and death.

Products are drained at facilities, schools, homes, workplaces drains. They enter wastewater treatment plants in wastewater. During processing, sewage is separated into treated wastewater and sludge. The treated water is then released into groundwater, rivers, lakes and oceans. Many of these waterways supply drinking water to the community. The problem is that the wastewater treatment facility is not designed to remove these chemicals. Please think twice before cleaning or flushing the drain pipe which may harm the environment. Choosing products to use in indoor environments will help protect the environment and health. Below are two examples of environmentally harmful products.

Wastewater treatment is part of the health field. For health, management of people and solid waste, management of rainwater (drainage) is included. By-products from wastewater treatment facilities such as sieving, gravel and sewage sludge can also be disposed of at the wastewater treatment facility. : Chapter 14 is processed or reused after processing, but must be considered first. Since treatment or reuse is the purpose of wastewater treatment, the choice of disposal or reuse is the basis of the process decision. The allowable impurity concentration varies depending on the type of use and the place of disposal. Transport costs usually depend on the treatment location for acceptable impurity concentrations, but expensive processing requirements can prompt selection of disposal sites based on impurity concentrations. Ocean disposal obeys the requirements of international treaties