Caracterização dos resíduos esgotados de sistemas de tratamento individual de esgotos de Natal

In Natal still dominates the use of individual disposal systems for domestic sewage, once only 29% of the city has a sewarage system. Wastes that are accumulated in these individual treatment systems should be exhausted periodically, service provided by collector entrepreneurs. Some of these companies causing major damage to the environment. In Natal, only two companies have their own septage (RESTI) treatment system, which were designed with parameters from domestic sewage generating strain and inefficient systems. Therefore, the characterization becomes essential as a source of parameters for their design. Thus, this work presents the physical-chemical and microbiological characterization of waste pumped from individual sewage treatment systems. Samples collections were made weekly from 5 different trucks at the reception point on the treatment plant on the point of the preliminary treatment. From each truck it was taken 5 samples during the discharge in order to make a composite sample. Afterwards, samples were carried out to laboratory and analyses for determination of temperature, pH, conductivity, BOD, COD, nitrogen (ammonia e organic), alkalinity, oils, phosphorus, solids, faecal coliforms and helminth egg. The results were treated as a single database, and ranked according to its generating source (multi and single house, lodging, health, services and / or food), area of origin (metropolitan, south and north) and type of system (cesspits, septic tank and / or sink). Through these data it was possible to verify that the type of system adopted by most in Natal and the metropolitan region is cesspit, besides to confirm the difference between the septage of areas with a population have different social and economical characteristics. It was found that the septage have higher concentrations than domestic sewage, except for thermotolerant coliforms that showed concentrations of 1,38E+07. Among the parameters studied, is the median values identified for COD (3,549 mg / L), BOD (973mg / L) and total solids (3.557mg / L). The volatile fraction constitutes about 70% of the total solids of the septage. For helminths has been a median of 7 eggs/L. In general, the characteristics of the waste followed the variability found in the literature reviewed for all variables, showing high amplitudes

O processo de inserção dos psicólogos na assistência social em Natal/RN no período de 1972-2003

Since the rules of the National Social Assistance (PNAS) and the Unified Social Assistance System (SUAS) in 2004/2005 the psychologist action as an essential professional teams in the services offered in this field. Althoug, there are indications of psychologists who worked on the assistence prior this time. This insertion had not systematized in the literature, not allowing the establishment of records of this linear trajectory. The objective of this paper is investigate the entrance and a psychologist working in social care services in Natal / RN , as well as the activities undertaken by them in the period 1972-2003 . This temporal boundary is justified because Natal initiate to have a psychologist from 1972 to 2003 was immediately prior to the landmarks of the 2004/2005 year. The research was divided into two stages: documentary and oral history. The first was through the consultation of 86 monographs of the Sector Documentation Social Service Department of the Federal University of Rio Grande do Norte , its intend identify what were the services that characterized the health care field and evidence of the presence of psychologists in these spaces. In the second stage, interviews with psychologists who worked 13 trailers to social assistance in order to investigate its performance, activities undertaken, the insertion process in the area, among other things were done. The material analysis was based on themes from a historical perspective. The results point to three major areas of integration of psychologists : in child exceptionality in which psychologists were linked to Brazilian Legion Social Assistance (LBA); the field of the minor through the State Foundation for the Well Being of Minors (center), and occupying positions of management and coordination in some welfare programs.