This paper introdrces new advances in land treatment technology, discourses the relationship between N removing effects and the distribution of bacteria in under ground-ditch-pattern soil treatment.

• 以贵州省环科院内地沟式土地处理中试装置为例,探讨了地沟式污水上地处理系统细菌分布关系以及微生物活动对氮的脱除效果。