A hydrometallurgical plant for nickel laterite ore extraction having a plurality of treatment facility lines wherein the plant is capable of minimizing a decrease in throughput when line failure occurs and efficiently restoring normal operation status Each line of the treatment facility includes a pretreatment step, {TAIL ~ a leaching step}, a solid liquid separation step, {HEAD ~ a neutralization step}, a zinc removal step, a sulfurization step and a detoxification step 
A hydrometallurgical plant for nickel laterite ore extraction having a plurality of treatment facility lines wherein the plant is capable of minimizing a decrease in throughput when line failure occurs and efficiently restoring normal operation status Each line of the treatment facility includes a pretreatment step , { TAIL ~ a leaching step } , a solid liquid separation step , { HEAD ~ a neutralization step } , a zinc removal step , a sulfurization step and a detoxification step
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