이라크의 석유사업에 대한 국가 기업(State Company for Oil Projeacts, SCOP)이 무방류 처리시설(Zero Liquid Discharg, ZLD) 시스템을 통해 카르발라(Karbala) 정유 공장에서 모든 액체 폐기물을 제거해 배출할 예정이다. 베이올라(Veolia)의 HPD 증발기 기술은 SCOP과 EPC 계약자 HDGSK에 의해 카르발라 정유 프로젝트에 선정되었으며, 현대건설·GS건설·SK건설·현대엔지니어링과의 합작 투자이다.

 

베이올라는 황산칼슘 시드 슬러리(seeded slurry) 공정에 대해 검증된 HPD 소금물 증발기와 소금물 결정기 기술을 바탕으로 ZLD 시스템을 이용해 엔지니어링을 조달·제공할 예정이다.

 

 

 

Iraq´s State Company for Oil Projeacts (SCOP) will use a zero liquid discharge (ZLD) to eliminate all liquid waste discharge from its Karbala refinery.

 

Veolia´s HPD evaporator technology was selected for the Karbala Refinery project by SCOP and its EPC contractor HDGSK, a joint venture comprising Hyundai Engineering & Construction, GS Engineering & Construction, SK Engineering & Construction and Hyundai Engineering.

 

Veolia Water Technologies will engineer, procure and deliver a Zero Liquid Discharge system based on its proven HPD Brine Evaporator and Brine Crystallizer technologies for calcium sulfate seeded slurry processes.

 

Veolia’s system will be divided into two steps: the first step is a Brine Concentrator based on calcium sulfate seeded slurry and driven through a single Mechanical Vapour Recompression (MVR).

 

The second step is a Zero Liquid Discharge (ZLD) Brine Crystallizer driven through two stages of single MVR.

 

The plant will have a capacity of 55 m3/hr and is scheduled for delivery in August 2016.

 

The combined system will eliminate all liquid waste discharge and will produce a waste solid product discharge from a centrifugal separation process.

 

Waste solids from the plant will be routed to a landfill for disposal. The process distillate quality recovered from the process will be routed internally to the refinery for reuse.

 

Ignacio Martinez, vice-president and general manager of Veolia Water Technologies’ Evaporation & Crystallization activities, said: “The Karbala refinery is due to become the most technically advanced refinery in Iraq.”

 

[출처 = Water World / 2015년 10월 21일]