WASTEWATER TREATMENT PLANT DESIGN AND

CONSTRUCTION

WATER

REFRIGERATION

CONSTRUCTION

ENERGY

INSTALLATIONS

WATERREFRIGERATION CONSTRUCTIONENERGYINSTALLATIONS

SIA "VEGA 1" offers economic and technological wastewater treatment plant design, construction, SCADA and service maintenance.

SIA “ VEGA 1” manufactures, assembles and installs SBR type wastewater treatment plants with own SCADA system for:• hotels and guesthouses;• villages and towns;• Industries;• sites with with a large imbalance of wastewater flow and pollution.

Wastewater biological treatment is the most effective and optimal way of wastewater treatment. One of the most efficient technologies in this field, at the moment, is SBR (sequencing batch reactor). Unlike traditional treatment methods where wastewater flows through several, different meaning tanks, in sequencing batch reactor all wastewater treatment processes take place in a single tank. Such reactors are effective in wastewater treatment for a single private houses, villages and towns. Depending on the volume of wastewater flow, SBR wastewater treatment plant may consist of a different number of tanks and configurations. It should be noted that it is able to use existing tanks for an SBR processes. In the very simple way SBR plant consists of a wastewater buffer tank and the reactor.

Operating principles of SBR

CONSTRUCTIONWATERREFRIGERATION ENERGYINSTALLATIONS

1. Reactor is ready for use. Approximately 40% of the volume is filled with activated sludge. Wastewater is pumped from the buffer tank to the rector. After filling the reactor, with repeated, short term effective aeration sludge is mixed with wastewater. Wastewater treatment process (denitrification) under anaerobic (oxygen-free) conditions is taking place.

2. Periodic and long aeration is taking place. Wastewater treatment is running under aerobic (oxygen-saturated) conditions (nitrification).

3. Aeration is stopped and the settling process takes place

4. In this step decanting of the treated wastewater and removing of the excess sludge is taking place.

Project Mechanical and biological wastewater treamtment plant for slaughterhouse and meat processing factory

Costumer «Kurzemes Gaļsaimnieks» Ltd.

Location «Pūpoli», Virgas pagasts, Priekules novads, LV 3433, Latvija

Wastewater inflow 120 m3/day (4000 PE)

Contract value 695 977 EURO

Construction year 2011-2012

Installation of combined pretreament equipment for treatment of mechanical contamination, incl. sand, grease and fat removalDesign, construction and installation of SBR biological wastewater treatment reactorInflow wastewater quality: COD = 4 000 mg/l, BOD = 2000 mg/l, Ntot.. = 367 mg/l, Ptot.. = 60 mg/l Outflow water quality: COD = 90 mg/l, BOD = 20 mg/l, Ntot.. = 18 mg/l, Ptot.. = 10 mg/l

«Kurzemes Gaļsaimnieks» Ltd. mechanical and biological wastewater treamtment plant

Project Wastewater pretreatment equipment for slaughterhouse

Costumer «AIBI» Ltd.

Location «Kleivēni», Inešu pagasts, Vecpiebalgas novads

Wastewater inflow 20 m3/day (1842 PE)

Contract value 44 973 EURO

Construction year 2014-2015

Installation of wastewater pretreament equipment – fine rotary screen for seperation of mechanical contaminants.Installation of dissolved air flotation (DAF) equipment for total wastewater contamination reduction. Reduction efficiency – 70%.

«AIBI» Ltd. Mechanical wastewater pretreatment equipment

Project Biological wastewater treatment plant

Costumer «ŠĶIETNIEKI IS» Ltd.

Location «Šķietnieki», Dobeles novads, Zebrenes pagasts

Wastewater inflow 10 m3/day (921 PE)

Contract value 55 068 EURO

Construction year 2014

Design, manufacture and installation of biological wastewater treatment plant

«ŠĶIETNIEKI IS» Ltd. biological wastewater treatment plant

Project Pre-treatment unit improvement in Liepaja city Waste Water Plant

Customer «Liepājas Ūdens» Ltd.

Location Liepāja

Average capacity 36 000 m3 of municipal waste water per day

Contract value 1 197 454 EURO

Construction year 2008-2009

Example of innovative technology implementation in municipal waste water treatment plant.Target of the project – to reduce amount of hydrogen sulphide.Benefits of the project:- Improvement in biological and chemical processes of waste water treatment plant- Reduction of chemical effect to mechanical parts ot the plant, thus prolonging life

cycle of the parts.

Pre-treatment unit improvement in Liepaja city Waste Water Plant treatment plant

On-site installed wastewater treatment plants for municipalities

Project Nica village

Inflow 150 m3/day (1000 PE)

Construction year 2010

Inflow quality Outflow quality

BOD – 222 mg/lCOD – 457 mg/lSS – 250 mg/l

BOD – 10,1 mg/l (95%)COD – 36,5 mg/l (92%)SS – 10 mg/l (96%)

Project Seda village

Inflow 300 m3/day (2000 PE)

Construction year 2012

Inflow quality Outflow quality

BOD – 560 mg/lCOD – 880 mg/lSS – 230 mg/l

BOD – 2,7 mg/l (99%)COD – 44 mg/l (95%)SS – 5 mg/l (98%)

Project Vilgale village

Inflow 50 m3/day (334 PE)

Construction year 2012

Inflow quality Outflow quality

BOD – 146 mg/lCOD – 249 mg/lSS – 186 mg/l

BOD – 14 mg/l (90%)COD – 37,6 mg/l (85%)SS – 13,6 mg/l (93%)

On-site installed wastewater treatment plants for municipalities

Project Lejasciems village

Inflow 90 m3/day (600 PE)

Construction year 2013

Inflow quality Outflow quality

BOD – 442 mg/lCOD – 805 mg/lSS – 272 mg/lNtot. – 144 mg/lPtot. – 13 mg/l

BOD – 6,5 mg/l (98%)COD – 57 mg/l (93%)SS – 5 mg/l (98%)Ntot. – 7 mg/l (95%)Ptot. – 7 mg/l (47%)

Project Slampe village

Inflow 120 m3/day (800 PE)

Construction year 2013

Inflow quality Outflow quality

BOD – 340 mg/lCOD – 470 mg/lSS – 160 mg/lNH4 – 57 mg/lPtot. – 5,4 mg/l

BOD – 1,4 mg/l (99%)COD – 29 mg/l (94%)SS – 1,2 mg/l (99%)Ntot. – 8,8 mg/l (85%)Ptot. – 1,54 mg/l (73%)

Project Iecava city

Inflow 1100 m3/day (7334 PE)

Construction year 2013

Inflow quality Outflow quality

BOD – 800 mg/lCOD – 400 mg/lSS – 467 mg/lNtot. – 73 mg/lPtot. – 13 mg/l

BOD – 57 mg/l (93%)COD – 6,5 mg/l (98,5%)SS – 5 mg/l (98%)Ntot. – 7 mg/l (95%)Ptot. – 7 mg/l (50%)

On-site installed wastewater treatment plants for municipalities

Project Janmuiza village

Inflow 75 m3/day (600 PE)

Construction year 2014

Inflow quality Outflow quality

BOD – 377 mg/lCOD – 600 mg/lSS – 117 mg/lNtot. – 129 mg/lPtot. – 13,1 mg/l

BOD – 7,21 mg/l (98%)COD – 34 mg/l (94%)SS – 19 mg/l (84%)Ntot. – 18,9 mg/l (85%)Ptot. – 7,57 mg/l (43%)

Pre-fabricated wastewater treatment plants for municipalities

Project Rudes village

Inflow 60 m3/day (400 PE)

Construction year 2015

Inflow quality Outflow quality

BOD – 210 mg/lCOD – 480 mg/lSS – 100 mg/lNtot. – 42 mg/lPtot. – 12,6 mg/l

BOD – 7,97 mg/l (94%)COD – 54,5 mg/l (89%)SS – 8,78 mg/l (91%)Ntot. – 7,96 mg/l (82%)Ptot. – 0,33 mg/l (97%)

Project Rubas village

Inflow 55 m3/day (367 PE)

Construction year 2015

Inflow quality Outflow quality

BOD – 205 mg/lCOD – 483 mg/lSS – 280 mg/l

BOD – 5,04 mg/l (98%)COD – 44,3 mg/l (90%)SS – 1,12 mg/l (99%)

Project Karki village

Inflow 45 m3/day (300 PE)

Construction year 2014

Inflow quality Outflow quality

BOD – 413 mg/lCOD – 766 mg/lSS – 272 mg/lNtot. – 214 mg/lPtot. – 5,4 mg/l

BOD – 3,2 mg/l (99%)COD – 35 mg/l (95%)SS – 2 mg/l (99%)Ntot. – 11,3 mg/l (95%)Ptot. – 0,72 mg/l (87%)

www.vega1.lv, info@vega1.lv, +371 63481064

SIA “VEGA 1” Dunu street 8

Liepaja, LV 3401, Latvia