1. RESEARCH CENTER IN WASTEWATER 
TREATMENT AND HAZARDOUS WASTE   
(CITRAR-UNI) 
 

The Center for Research on Treatment of Wastewater 
and Hazardous Waste - CITRAR-UNI starts in 2011 HOUSE OF BARS 
which until then was the pilot plant treating 
wastewater from the National Engineering University It has two types of bars, a 25-mm and one 15 mm This unit has a digester treatment, two settlers and
UNITRAR, which became operational in January spacing between bars. These units hold large solid a gas chamber. The wastewater to be treated is
1996. CITRAR-UNI It aims to promote scientific materials that are usually carried by sewage (bags, distributed evenly on the bottom of the reactor.
research, with a tendency to look for alternative plastics, plant Subsequently flows through a layer or sludge
techniques of low-cost solution to the problem of debris, dead blanket. This layer transforms or degrades the
treatment, improper disposal and reuse of wastewater animals, etc..). organic matter by anaerobic digestion. It made the
and hazardous waste in Peru. These wastes are process of hydrolysis, acetogenesis and
disposed in a methanogenesis. The biogas formed is collected in
CITRAR-UNI is located in the northern part of the landfill eventually a gas chamber and the waste water rises to the
University Campus, Sector 'G' in an area of 4.5 manual operation settlers and then is collected in gutters, yielding a
hectares, the right side of Tupac Amaru Avenue in located within the clarified effluent that will later stabilization ponds
the district of Rimac (Lima, Peru). plant area. to continue with secondary treatment.


 
CITRAR has a treatment capacity of 10 lps. This Is installed a Mariotte tank, through which makes
 measurements of the production of biogas
wealth is catch from SEDAPAL´s sewer network,  generated in the
coming form the AA.HH. El Angel and El Milagro, in
reactor. This gas is
the district of Independencia. the main products
The plant can achieve levels of Coliformes fecales Possible to remove the sand
that usually carry away
CH4, CO2 and H2S.
removal up to 99.99%, BDO5 up to 97.5% and a The CH4 (methane)
sewage. This flow is
parasite removal of 100%. Due to this, the water horizontal sand trap, and a is a fuel that can be
produced can be perfectly used to water parks, rectangular section. There exploited.
gardens and culture fish. are two alternate operating
units of water. The excess sludge to
The rate of passage through be removed periodically from RAMLFA for
this structure is controlled dehydration is disposed in a drying bed. This unit
by installing a Sutro weir at features a filter media consists of sand and gravel
the outlet of the unit.
and a drainage system where fluids desaguarán
 percolated into the drainage system.

2. .
 
 NATIONAL

UNIVERSITY
. 
The domestic wastewater has captured a pre-
treatment: thick bars, bars and fine sand removal,
ENGINEERING
RESEARCH CENTER WASTEWATER TREATMENT AND WASTES
. primary treatment: septic tank and then enter the U.N.I
wetland.
CITRAR-UNI
This treatment system is based on the horizontal flow
CITRAR-UNI has two types of facultative ponds in of wastewater through a solid bed filter comprising
series, reaching a total retention period of 16 days, layers of gravel, together
FACULTY OF
which receive the effluent from RAMLFA. The with the biological activity
secondary lagoon is rectangular and has a volume of provided by the growth of ENVIRONMENTAL
7500 m3, the tertiary lagoon is square and has a microorganisms in the area ENGINEERING
volume of 3750 m3. The processes taking place in of the rhizomes of the plants F.I.A
the lakes are sedimentation, sludge digestion, aerobic that are planted in the
stabilization of organic matter consumption of CO2 gravel.
with algae photosynthesis, production of O2 and CO2
consumption, and removal of bacteria and parasites. 
BENEFITS AND SERVICES
 - Contribution to professional technical education
students at undergraduate and post graduate
 nationally and internationally.
 - Use of treated water for irrigation of parks and
The treated water is used to irrigate the gardens of the gardens of the campus and surrounding districts.
National Engineering University tanker trucks of 10 - Use of treated water in the cultivation of fish for
m3 human consumption.
- Promotion of scientific research in the area of
 treatment of wastewater and hazardous waste by
 supporting the development of research theses.
CITRAR-UNI has 3 - Guided tours to colleges, universities and public
ponds trapezoidal section institutions, private and overseas.
are fed with the effluent - CITRAR-UNI offers technical advisory services
from the tertiary lagoon. and training in the treatment of domestic and
The ponds are cultivated industrial wastewater.
fish for human
consumption of Nile Telf. +511 4811070 (Anexo 581)
tilapia species, tropical species in warm climates up Fax +511 4821585
to 250 gr. in 7 months.
Web: http://fiauni.pe/unitrar CITRAR-UNI
E-mail: citrar@uni.edu.pe