Page 45 - THE GLOBAL LEADER IN MEMBRANE SEPARATION INDUSTRY

PART 02 Proficient in membrane technology and
PART 02 Proficient in membrane technology and
customized processes as needed
customized processes as needed

New energy and environmental protection Treatment of wastewater from fuel ethanol production

Zero discharge of iron phosphate wastewater According to statistics, every ton of ethanol produced produces 20 tons of wastewater. Fuel

ethanol wastewater is an organic wastewater with high concentration, high temperature, high
At present, the production process of iron phosphate mainly adopts the ammonium method suspended solids, and complex composition. The wastewater contains a large amount of volatile
and sodium method, and each ton of iron phosphate produces 50m ~70m of production
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wastewater. Iron phosphate wastewater has the characteristics of high TDS, low pH value, high COD, acids with a pH value of 4-5. Directly discharging these wastewater can cause serious environmental
high temperature, and high impurity ions (iron, manganese, magnesium, calcium). The traditional pollution. How to economically and efficiently treat fuel ethanol wastewater has always been one of
process for treating iron phosphate wastewater has shortcomings such as poor pre-treatment the important challenges that enterprises urgently need to solve.
efficiency, severe membrane pollution, low product salt quality, unstable reused water quality, and
high reagent consumption. The industry urgently needs to develop reliable zero discharge
technology for iron phosphate wastewater to ensure the stable operation of the iron phosphate Main process
production process.
Anaerobic Digestion + Two-Stage AO Biochemical Method + MBR + Dual Membrane System
In response to the demand for zero discharge of wastewater from the production of iron Process + Advanced Oxidation + High-Pressure Reverse Osmosis.
phosphate, JIUWU HI-TECH has independently developed sedimentation reaction coupled ceramic
membrane separation technology, deep deionization technology, membrane method acid water
reuse technology, and efficient membrane integrated concentration technology. It has achieved the Technical advantages
successful operation of the first domestic sedimentation reaction coupled ceramic membrane
separation zero discharge project for iron phosphate wastewater.
· The process has strong impact resistance, impact load resistance, low investment,
stable operation, low energy consumption, and can recover energy;
Technical advantages
· Adopting ozone oxidation, hydrolysis acidification, and internal circulation aeration
technology in biofilters to ensure the up-to-standard discharge of wastewater;
· Advanced preprocessing technology： · It can achieve 70% to 100% wastewater reuse, used for cooling circulating water
Can reduce metal ions such as calcium, magnesium, iron, and manganese to 1ppm, while replenishment, boiler replenishment, and generating biogas for recycling.
effectively removing COD and reducing subsequent membrane system loads;
· System operation and stable water quality:
The system is mature, resistant to water quality fluctuations, stable production water quality,
and conductivity of recycled water ≤ 10 μS/cm;
· Saving medication costs:
Efficient reuse of over 80% of acidic washing water, saving a large amount of ammonia reagent
and sulfuric acid used for pH adjustment;
· Savings in civil engineering investment:
The process flow is short, reducing the volume of the reaction tank and reducing the floor area.

8000t/d iron phosphate production wastewater A 20000t/d zero discharge project for iron phosphate
zero discharge project of a certain enterprise in production wastewater from a certain enterprise A 1500t/d fuel ethanol production wastewater deep treatment and water reuse project
Shandong Province in Henan Province (Phase I + Phase II) for a certain enterprise in Hebei Province.

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