Stabilisation Ponds Wastewater Treatment Design Manual 2018

Development document for the proposed effluent limitations guidelines and standards for the meat and poultry products industry. Office of Water (4303T), United States Environmental Protection Agency (USEPA), EPA-821-B-01-007, 2002. 2. Council of the European Communities. Council Directive on health problems affecting the production and marketing of meat products and certain other products of animal origin. Official J. Eur. Comm. 1977, L 026 (31 October 1977), 0085-0100. 3. Warris, P.D....

Primary Treatment

Grease removal is a common first stage in slaughterhouse wastewater treatment, with grease traps in some situations being an integral part of the drainage system from the processing areas. Where the option is taken to have a single point of removal, this can be accomplished in one of two ways by using a baffled tank, or by dissolved air flotation (DAF). A typical grease trap has a minimum detention period of about 30 minutes, but the period need not to be greater than 1 hour 33 . Within the...

Onsite Pretreatment Options

The main purpose of screens in wastewater treatment is to remove large particles or debris that may cause damage to pumps and downstream clogging 27 . It is also recommended that the physical screening of dairy wastewater should be carried out as quickly as possible to prevent a further increase in the COD concentration as a result of the solid solubilization 28 . Wendorff 7 recommended the use of a wire screen and grit chamber with a screen aperture size of 9.5 mm, while Hemming 28 recommended...

Production of Refined Bleached Deodorized Palm Oil RBDPO

Palm Oil Production Process

The refining of CPO employs physical steam refining in which steam distillation is used to separate free fatty acids under high temperature and vacuum Fig. 4.3 . It consists of two main processes as follows. Before the actual refining process is carried out, the CPO is pretreated with phosphoric acid to eliminate impurities such as gums and trace metals. A bleaching technique is then used to remove phosphoric acid and its content under vacuum, followed by a filtration method. Solid waste in the...