The Moringa seed cake after oil extraction is used as a fertilizer and also to purify well water/ turbid water and to remove salt from seawater. The best alternative for alum.
It helps remove sediment and bacteria, leaving the water clear and clean. Moringa seed cake is introduced into water and the water is stirred for some time. The pieces of cake attract particles including dirt, sediment, algae and bacteria which cling to the seed cake particles. The water is then filtered through a fine clothe. One or two seeds equivalent cake per litre is required for cleaning contaminated water.